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Showing below up to 500 results in range #51 to #550.

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  1. Time to alarm‏‎ (4 categories)
  2. Float charge‏‎ (4 categories)
  3. Marginally detectable bias (MDB)‏‎ (4 categories)
  4. Sector (of a sector light)‏‎ (4 categories)
  5. Mercury switch‏‎ (4 categories)
  6. Recognition of an AtoN Light‏‎ (4 categories)
  7. Cast in-situ piling‏‎ (4 categories)
  8. Atterberg limits‏‎ (4 categories)
  9. Subsidiary Light‏‎ (4 categories)
  10. Automatic Identification System (AIS) (2)‏‎ (4 categories)
  11. Mole‏‎ (4 categories)
  12. Vacuum Lamp/es‏‎ (4 categories)
  13. Chopping‏‎ (4 categories)
  14. Bad-bearing sector‏‎ (4 categories)
  15. Near Miss‏‎ (4 categories)
  16. Detection (2)‏‎ (4 categories)
  17. Prism‏‎ (4 categories)
  18. Temporary Light‏‎ (4 categories)
  19. Bayonet Cap/es‏‎ (4 categories)
  20. Fault‏‎ (4 categories)
  21. Occupied bandwidth‏‎ (4 categories)
  22. A-N Radio range‏‎ (4 categories)
  23. Diffuser‏‎ (4 categories)
  24. Fixed Mark‏‎ (4 categories)
  25. Directly controlled variable‏‎ (4 categories)
  26. Winter Buoy (U.S.A.)‏‎ (4 categories)
  27. Initial Operational Capability (IOC)‏‎ (4 categories)
  28. Focusing‏‎ (4 categories)
  29. Spindle Buoy‏‎ (4 categories)
  30. Docking Signals‏‎ (4 categories)
  31. Radio beacon - Non-Directional‏‎ (4 categories)
  32. Bullivant nipper‏‎ (4 categories)
  33. Angle of Divergence/de‏‎ (4 categories)
  34. Isophase Light‏‎ (4 categories)
  35. Arc‏‎ (4 categories)
  36. Metal Vapour Lamp‏‎ (4 categories)
  37. Lamp Changer‏‎ (4 categories)
  38. Gong‏‎ (4 categories)
  39. Landmark‏‎ (4 categories)
  40. Reflectance‏‎ (4 categories)
  41. VTS Centre‏‎ (4 categories)
  42. Channel Light‏‎ (4 categories)
  43. Grid Filament‏‎ (4 categories)
  44. Automatic sequence control‏‎ (4 categories)
  45. Classification of bearings‏‎ (4 categories)
  46. Pre-emphasis‏‎ (4 categories)
  47. Systematic error‏‎ (4 categories)
  48. No-break power system‏‎ (4 categories)
  49. Colorimetry‏‎ (4 categories)
  50. Bearing circle‏‎ (4 categories)
  51. Omega‏‎ (4 categories)
  52. Dilution of precision (DOP)‏‎ (4 categories)
  53. Optical coupler‏‎ (4 categories)
  54. Wreck‏‎ (4 categories)
  55. Ambient noise‏‎ (4 categories)
  56. Maintenance‏‎ (4 categories)
  57. Buoy station‏‎ (4 categories)
  58. Fresnel Lens‏‎ (4 categories)
  59. Permanent Light‏‎ (4 categories)
  60. Mean time between failures (MTBF)‏‎ (4 categories)
  61. Assembled Lens‏‎ (4 categories)
  62. Refresher Training‏‎ (4 categories)
  63. Chart datum‏‎ (4 categories)
  64. Ground wave - Radar‏‎ (4 categories)
  65. Back echo‏‎ (4 categories)
  66. Equiphase zone‏‎ (4 categories)
  67. Lifting eye‏‎ (4 categories)
  68. Fail safe‏‎ (4 categories)
  69. Difference in Time Of Arrival (DTOA)‏‎ (4 categories)
  70. Horizontally polarized wave‏‎ (4 categories)
  71. Threshold of Illuminance‏‎ (4 categories)
  72. Acoustic impedance‏‎ (4 categories)
  73. Direction Light (2)‏‎ (4 categories)
  74. Loran A‏‎ (4 categories)
  75. Confusion region‏‎ (4 categories)
  76. Incandescent (Electric) Lamp‏‎ (4 categories)
  77. Quantization error‏‎ (4 categories)
  78. Floating Mark‏‎ (4 categories)
  79. Luminous Range‏‎ (4 categories)
  80. Brush‏‎ (4 categories)
  81. Participating Vessel‏‎ (4 categories)
  82. Marginally detectable error (MDE)‏‎ (4 categories)
  83. Butane/es‏‎ (4 categories)
  84. Full Operational Capability (FOC)‏‎ (4 categories)
  85. Anti-fouling paint/es‏‎ (4 categories)
  86. Effective Intensity‏‎ (4 categories)
  87. Glare‏‎ (4 categories)
  88. Gong Buoy (U.S.A.) (2)‏‎ (4 categories)
  89. Automatic Identification System (AIS) (3)‏‎ (4 categories)
  90. Chord line‏‎ (4 categories)
  91. Necessary bandwidth‏‎ (4 categories)
  92. Detection of an AtoN light‏‎ (4 categories)
  93. Light Valve‏‎ (4 categories)
  94. Codes on Alerts and Indicators‏‎ (4 categories)
  95. Feathering‏‎ (4 categories)
  96. Octahedral cluster‏‎ (4 categories)
  97. A-display‏‎ (4 categories)
  98. Diffusion‏‎ (4 categories)
  99. Composite Group-Flashing Light‏‎ (4 categories)
  100. Fixed antenna direction finder‏‎ (4 categories)
  101. Disability Glare‏‎ (4 categories)
  102. Focusing Device‏‎ (4 categories)
  103. Radio beacon characteristic‏‎ (4 categories)
  104. Bullseye‏‎ (4 categories)
  105. Angle of Polarization‏‎ (4 categories)
  106. Fusion Frequency‏‎ (4 categories)
  107. Arc (Discharge)‏‎ (4 categories)
  108. Lamp Changer/es‏‎ (4 categories)
  109. Reduced carrier‏‎ (4 categories)
  110. Celestial horizon‏‎ (4 categories)
  111. Vertical beam width‏‎ (4 categories)
  112. Systematic errors‏‎ (4 categories)
  113. Lighthouse‏‎ (4 categories)
  114. Restoration‏‎ (4 categories)
  115. Colour (G.B.)‏‎ (4 categories)
  116. Bearing correction‏‎ (4 categories)
  117. Omega Antipodal effects‏‎ (4 categories)
  118. Sound emitter‏‎ (4 categories)
  119. Distance finding station‏‎ (4 categories)
  120. Wreck (2)‏‎ (4 categories)
  121. Ambiguity‏‎ (4 categories)
  122. Maintenance-free battery‏‎ (4 categories)
  123. Buoy store‏‎ (4 categories)
  124. Fresnel Profile‏‎ (4 categories)
  125. Assigned frequency‏‎ (4 categories)
  126. Electromagnetic waves‏‎ (4 categories)
  127. Large navigation(al) buoy‏‎ (4 categories)
  128. Refurbishment‏‎ (4 categories)
  129. Chart error‏‎ (4 categories)
  130. Ground wave suppression‏‎ (4 categories)
  131. Port Hand Mark (or Buoy)‏‎ (4 categories)
  132. Back lobe‏‎ (4 categories)
  133. Equipotential bonding‏‎ (4 categories)
  134. Reserve buoyancy‏‎ (4 categories)
  135. Hazard‏‎ (4 categories)
  136. Failure‏‎ (4 categories)
  137. Rhythmic‏‎ (4 categories)
  138. Horn‏‎ (4 categories)
  139. Threshold of hearing‏‎ (4 categories)
  140. Conical Buoy (G.B.)‏‎ (4 categories)
  141. Quantizer‏‎ (4 categories)
  142. Blocking diode/es‏‎ (4 categories)
  143. Alarm‏‎ (4 categories)
  144. Disturbance‏‎ (4 categories)
  145. Sector Angle‏‎ (4 categories)
  146. Effective acoustic centre‏‎ (4 categories)
  147. Mercury wetted relay‏‎ (4 categories)
  148. Types of service‏‎ (4 categories)
  149. Catadioptric‏‎ (4 categories)
  150. Gong buoy‏‎ (4 categories)
  151. Chromaticity‏‎ (4 categories)
  152. Ballast‏‎ (4 categories)
  153. Excess attenuation‏‎ (4 categories)
  154. Negative feedback‏‎ (4 categories)
  155. Sinker‏‎ (4 categories)
  156. Coefficient of (Reflex) Luminous Intensity‏‎ (4 categories)
  157. Beacon‏‎ (4 categories)
  158. Diffusion Factor‏‎ (4 categories)
  159. Composite Group-Occulting Light‏‎ (4 categories)
  160. Bezold-Briicke Phenomenon‏‎ (4 categories)
  161. Loran chart‏‎ (4 categories)
  162. Winter buoy‏‎ (4 categories)
  163. Racon‏‎ (4 categories)
  164. Along-track error‏‎ (4 categories)
  165. Correcting range‏‎ (4 categories)
  166. Radio beacon range‏‎ (4 categories)
  167. Percentage of Visibility‏‎ (4 categories)
  168. Angle of Uncertainty‏‎ (4 categories)
  169. Cupola‏‎ (4 categories)
  170. Isotropic or absolute gain of an antenna‏‎ (4 categories)
  171. Can Buoy‏‎ (4 categories)
  172. Arc Lamp‏‎ (4 categories)
  173. Metallised Lamp‏‎ (4 categories)
  174. Lampholder‏‎ (4 categories)
  175. Redundancy‏‎ (4 categories)
  176. Unlighted Buoy‏‎ (4 categories)
  177. Dead time‏‎ (4 categories)
  178. Reflector‏‎ (4 categories)
  179. VTS Manager‏‎ (4 categories)
  180. Character‏‎ (4 categories)
  181. Groin‏‎ (4 categories)
  182. Leg (of chain)‏‎ (4 categories)
  183. Extra High Pressure Mercury (Vapour) Lamp‏‎ (4 categories)
  184. Lighthouse (PHL)‏‎ (4 categories)
  185. Watchkeeping‏‎ (4 categories)
  186. Colour Filter‏‎ (4 categories)
  187. Omega Commutation‏‎ (4 categories)
  188. Long-Arc Lamp‏‎ (4 categories)
  189. Identification signal‏‎ (4 categories)
  190. Purkinje Phenomenon‏‎ (4 categories)
  191. Order (of an optic)‏‎ (4 categories)
  192. Wreck (2)/es‏‎ (4 categories)
  193. Folded dipole‏‎ (4 categories)
  194. Course‏‎ (4 categories)
  195. International Terrestrial Reference Frame (ITRF)‏‎ (4 categories)
  196. Buoy vent‏‎ (4 categories)
  197. Fresnel region‏‎ (4 categories)
  198. Cut-out wind speed (of a wind-power generator)‏‎ (4 categories)
  199. Carbon Arc Lamp‏‎ (4 categories)
  200. Gaseous Discharge Lamp‏‎ (4 categories)
  201. Assigned frequency band‏‎ (4 categories)
  202. Electrodynamic emitter - Diaphragm assembly‏‎ (4 categories)
  203. Electronic position indicator‏‎ (4 categories)
  204. Chayka‏‎ (4 categories)
  205. Group-Flashing Light‏‎ (4 categories)
  206. Sustainable‏‎ (4 categories)
  207. Reserve buoyancy/es‏‎ (4 categories)
  208. Coastal Mark‏‎ (4 categories)
  209. Preventive maintenance‏‎ (4 categories)
  210. Failure rate‏‎ (4 categories)
  211. ODAS buoy‏‎ (4 categories)
  212. Differential relay‏‎ (4 categories)
  213. Rhythmic Light‏‎ (4 categories)
  214. Threshold of perception‏‎ (4 categories)
  215. Loran C‏‎ (4 categories)
  216. Connecting rod‏‎ (4 categories)
  217. Quarantine (Ground) Mark (or Buoy)‏‎ (4 categories)
  218. Dither‏‎ (4 categories)
  219. Sector Light‏‎ (4 categories)
  220. Cross-band transponder‏‎ (4 categories)
  221. Cable‏‎ (4 categories)
  222. Antinode‏‎ (4 categories)
  223. Effective height (G.B.)‏‎ (4 categories)
  224. Plane of polarization‏‎ (4 categories)
  225. Centre of buoyancy (of a buoy)‏‎ (4 categories)
  226. Gong buoy (USA)‏‎ (4 categories)
  227. Chromaticity Co-ordinates‏‎ (4 categories)
  228. Ballast/es‏‎ (4 categories)
  229. Coefficient of permeability‏‎ (4 categories)
  230. Profile (of a fixed lens)‏‎ (4 categories)
  231. Load‏‎ (4 categories)
  232. Biconical antenna‏‎ (4 categories)
  233. Discharge Lamp‏‎ (4 categories)
  234. PZ-90 geodetic system‏‎ (4 categories)
  235. Correction‏‎ (4 categories)
  236. Radio beacon station‏‎ (4 categories)
  237. Buoy‏‎ (4 categories)
  238. Perception‏‎ (4 categories)
  239. Angle of incidence‏‎ (4 categories)
  240. Isotropic radiator‏‎ (4 categories)
  241. Meteorological Optical Range‏‎ (4 categories)
  242. Redundancy (2)‏‎ (4 categories)
  243. Unwatched Light‏‎ (4 categories)
  244. Dead time (2)‏‎ (4 categories)
  245. Lantern‏‎ (4 categories)
  246. Reflector (2)‏‎ (4 categories)
  247. Character (of a navigation light)‏‎ (4 categories)
  248. Gross errors‏‎ (4 categories)
  249. Lens‏‎ (4 categories)
  250. Vessel Technical Error (VTE)‏‎ (4 categories)
  251. Climbing form‏‎ (4 categories)
  252. Precision‏‎ (4 categories)
  253. Colour Stimulus‏‎ (4 categories)
  254. Omega Lane resolution‏‎ (4 categories)
  255. Dipole‏‎ (4 categories)
  256. Illuminance‏‎ (4 categories)
  257. Blade pitch‏‎ (4 categories)
  258. Distance root mean square (dRMS)‏‎ (4 categories)
  259. Wreck (2)/fr‏‎ (4 categories)
  260. Folded unipole antenna‏‎ (4 categories)
  261. Amplidyne‏‎ (4 categories)
  262. Down lead‏‎ (4 categories)
  263. Course Made Good‏‎ (4 categories)
  264. Cut-out wind speed (of a wind-power generator)/es‏‎ (4 categories)
  265. Astragals‏‎ (4 categories)
  266. Electrodynamic emitter - Diaphragm suspension‏‎ (4 categories)
  267. Miniature Cap/es‏‎ (4 categories)
  268. Electronic switching device‏‎ (4 categories)
  269. Latching relay‏‎ (4 categories)
  270. Cheese antenna‏‎ (4 categories)
  271. Group-Occulting Light‏‎ (4 categories)
  272. Position control system‏‎ (4 categories)
  273. Coastal protection‏‎ (4 categories)
  274. Hazard (2)/es‏‎ (4 categories)
  275. ODAS buoy/es‏‎ (4 categories)
  276. Differential system‏‎ (4 categories)
  277. Threshold signal‏‎ (4 categories)
  278. Rotating Optic‏‎ (4 categories)
  279. Conservation‏‎ (4 categories)
  280. Quarter wave skirt dipole‏‎ (4 categories)
  281. Body‏‎ (4 categories)
  282. Over-interrogation‏‎ (4 categories)
  283. Alert‏‎ (4 categories)
  284. Cross-track error‏‎ (4 categories)
  285. Irradiance‏‎ (4 categories)
  286. Aperiodic antenna‏‎ (4 categories)
  287. Effective height (U.S.A.)‏‎ (4 categories)
  288. Cylindrical wave‏‎ (4 categories)
  289. Glazing‏‎ (4 categories)
  290. Plane polarized wave‏‎ (4 categories)
  291. Centre of gravity (of a buoy)‏‎ (4 categories)
  292. Automatic direction finder‏‎ (4 categories)
  293. Ballast (2)‏‎ (4 categories)
  294. Hi-fix‏‎ (4 categories)
  295. Profile (of a lens, other than a fixed lens)‏‎ (4 categories)
  296. Beam width‏‎ (4 categories)
  297. Aberration/de‏‎ (4 categories)
  298. Compressed-air diaphragm horn‏‎ (4 categories)
  299. Bifurcation‏‎ (4 categories)
  300. Discharge Lamp/es‏‎ (4 categories)
  301. Loran stations‏‎ (4 categories)
  302. Continuous beam‏‎ (4 categories)
  303. Radar beacon‏‎ (4 categories)
  304. Topmark‏‎ (4 categories)
  305. Correction curve‏‎ (4 categories)
  306. Buoy (2)‏‎ (4 categories)
  307. Angle of internal friction‏‎ (4 categories)
  308. Mean Time To Repair/Restore (MTTR)‏‎ (4 categories)
  309. True position‏‎ (4 categories)
  310. Candela‏‎ (4 categories)
  311. Meteorological Visibility‏‎ (4 categories)
  312. Land light‏‎ (4 categories)
  313. Dead zone‏‎ (4 categories)
  314. Lantern (2)‏‎ (4 categories)
  315. VTS Operator (VTSO)‏‎ (4 categories)
  316. Surface-following discus buoy‏‎ (4 categories)
  317. Availability (qualitative)‏‎ (4 categories)
  318. Lens Carriage‏‎ (4 categories)
  319. Noise - electrical‏‎ (4 categories)
  320. Lighthouse tender‏‎ (4 categories)
  321. Retro-Reflecting Material‏‎ (4 categories)
  322. Colour Temperature‏‎ (4 categories)
  323. Beat‏‎ (4 categories)
  324. Accident‏‎ (4 categories)
  325. Illuminant‏‎ (4 categories)
  326. Flasher/es‏‎ (4 categories)
  327. Air-mass‏‎ (4 categories)
  328. Distant site error‏‎ (4 categories)
  329. Wreck Mark (or Buoy)‏‎ (4 categories)
  330. Bridle‏‎ (4 categories)
  331. Amplitude‏‎ (4 categories)
  332. Down time‏‎ (4 categories)
  333. Course to Make Good‏‎ (4 categories)
  334. Interrogator‏‎ (4 categories)
  335. Front Light‏‎ (4 categories)
  336. Cut Screen (G.B.)‏‎ (4 categories)
  337. Junction Mark (or Buoy)‏‎ (4 categories)
  338. Rear Light‏‎ (4 categories)
  339. Astragals (2)‏‎ (4 categories)
  340. Electrodynamic emitter - Driver‏‎ (4 categories)
  341. Augmentation‏‎ (4 categories)
  342. Latency‏‎ (4 categories)
  343. Light/de‏‎ (4 categories)
  344. Visibility‏‎ (4 categories)
  345. Coastal refraction‏‎ (4 categories)
  346. Hazard (2)/fr‏‎ (4 categories)
  347. Primary Light Source‏‎ (4 categories)
  348. Observed bearing‏‎ (4 categories)
  349. Differentiator‏‎ (4 categories)
  350. Threshold value (or alert limit)‏‎ (4 categories)
  351. Loran C Phase coding‏‎ (4 categories)
  352. Conservation Area‏‎ (4 categories)
  353. Fluorescent Lamp‏‎ (4 categories)
  354. Diverged Beam‏‎ (4 categories)
  355. Luneberg lens‏‎ (4 categories)
  356. Buffer‏‎ (4 categories)
  357. Island station‏‎ (4 categories)
  358. Aperture‏‎ (4 categories)
  359. Message Markers‏‎ (4 categories)
  360. Glazing bars‏‎ (4 categories)
  361. Plane wave‏‎ (4 categories)
  362. Gradient‏‎ (4 categories)
  363. Sun switch‏‎ (4 categories)
  364. Encoder‏‎ (4 categories)
  365. Reliability (of a position fix)‏‎ (4 categories)
  366. Circle of uncertainty‏‎ (4 categories)
  367. Power gain - antenna‏‎ (4 categories)
  368. Ballast (3)‏‎ (4 categories)
  369. Light float (2)/es‏‎ (4 categories)
  370. Resonance‏‎ (4 categories)
  371. Progressive wave‏‎ (4 categories)
  372. Bearing‏‎ (4 categories)
  373. Load (2)‏‎ (4 categories)
  374. Bifurcation Mark (or Buoy)‏‎ (4 categories)
  375. Optic rotation mechanism‏‎ (4 categories)
  376. Discomfort Glare‏‎ (4 categories)
  377. Continuous duty‏‎ (4 categories)
  378. Inland tender (USA)‏‎ (4 categories)
  379. Topmark/es‏‎ (4 categories)
  380. Dominant Wavelength‏‎ (4 categories)
  381. Main beam‏‎ (4 categories)
  382. Corrective action‏‎ (4 categories)
  383. Intermediate Light(s)‏‎ (4 categories)
  384. Buoy (3)‏‎ (4 categories)
  385. Angle of reflection‏‎ (4 categories)
  386. Mean life‏‎ (4 categories)
  387. Current-voltage characteristic‏‎ (4 categories)
  388. Candela per Square Metre‏‎ (4 categories)
  389. Daylight Control‏‎ (4 categories)
  390. Landfall Light‏‎ (4 categories)
  391. Lantern Glazing (G.B.) (2)‏‎ (4 categories)
  392. VTS Operator Certificate‏‎ (4 categories)
  393. Character recognition‏‎ (4 categories)
  394. Ground and Polished Glass‏‎ (4 categories)
  395. Availability (quantitative)‏‎ (4 categories)
  396. Level 1 training‏‎ (4 categories)
  397. Clock coder (G.B.)‏‎ (4 categories)
  398. Retro-Reflection‏‎ (4 categories)
  399. Column‏‎ (4 categories)
  400. Beat frequency oscillator‏‎ (4 categories)
  401. Accreditation‏‎ (4 categories)
  402. Whistle Buoy (2)‏‎ (4 categories)
  403. Illumination Photometer (G.B.)‏‎ (4 categories)
  404. Qualification‏‎ (4 categories)
  405. Spar Buoy‏‎ (4 categories)
  406. Distortion‏‎ (4 categories)
  407. Total Subtense‏‎ (4 categories)
  408. Bridle (chain)‏‎ (4 categories)
  409. Amplitude modulation (AM)‏‎ (4 categories)
  410. Interrupted Quick-Flashing Light‏‎ (4 categories)
  411. Buoyage and beaconage‏‎ (4 categories)
  412. Antenna effect‏‎ (4 categories)
  413. Echo box‏‎ (4 categories)
  414. Cut screen‏‎ (4 categories)
  415. Junction box‏‎ (4 categories)
  416. Cardinal system of marking‏‎ (4 categories)
  417. Electrodynamic emitter - Moving coil‏‎ (4 categories)
  418. Aural critical band‏‎ (4 categories)
  419. Lateral deviation‏‎ (4 categories)
  420. Chequers (G.B.)‏‎ (4 categories)
  421. Position fixing‏‎ (4 categories)
  422. Swing - angle‏‎ (4 categories)
  423. Visibility meter‏‎ (4 categories)
  424. Coastal tender (USA)‏‎ (4 categories)
  425. Bell striker - Dwell time‏‎ (4 categories)
  426. Actual range of a sound signal‏‎ (4 categories)
  427. Loran Cycle match‏‎ (4 categories)
  428. Consol‏‎ (4 categories)
  429. Fluorescent Mercury Discharge Lamp‏‎ (4 categories)
  430. Diversity factor‏‎ (4 categories)
  431. Buffer stage‏‎ (4 categories)
  432. Frame (of an optic)‏‎ (4 categories)
  433. Anchorage Mark (or Buoy)‏‎ (4 categories)
  434. Drum Lens‏‎ (4 categories)
  435. Masonry‏‎ (4 categories)
  436. Crossbar switch‏‎ (4 categories)
  437. Isocandela Curve (G.B.)‏‎ (4 categories)
  438. Appearance of Light‏‎ (4 categories)
  439. Messenger‏‎ (4 categories)
  440. Cathodic protection‏‎ (4 categories)
  441. Grading‏‎ (4 categories)
  442. Reliability (of an observation)‏‎ (4 categories)
  443. Synchronous Lights‏‎ (4 categories)
  444. Ballast Lamp‏‎ (4 categories)
  445. Executive pulse‏‎ (4 categories)
  446. Diameter (of a chain)‏‎ (4 categories)
  447. Light float (2)/fr‏‎ (4 categories)
  448. Resonance (2)‏‎ (4 categories)
  449. High Focal Plane Buoy‏‎ (4 categories)
  450. Projector‏‎ (4 categories)
  451. Binary‏‎ (4 categories)
  452. Optical Axis‏‎ (4 categories)
  453. Safety hand-hold/es‏‎ (4 categories)
  454. Topmark (2)‏‎ (4 categories)
  455. Fog detector‏‎ (4 categories)
  456. Corrective maintenance‏‎ (4 categories)
  457. Intermediate frequency‏‎ (4 categories)
  458. Radio leading line‏‎ (4 categories)
  459. Buoy lantern‏‎ (4 categories)
  460. Period (of a rhythmic light)‏‎ (4 categories)
  461. Angle of refraction‏‎ (4 categories)
  462. Current (sensitive) relay‏‎ (4 categories)
  463. Cannibalization‏‎ (4 categories)
  464. Gallery‏‎ (4 categories)
  465. Daylight Signal Light‏‎ (4 categories)
  466. Landfall Mark (or Buoy)‏‎ (4 categories)
  467. Lantern deck‏‎ (4 categories)
  468. VTS Operator Course Certificate‏‎ (4 categories)
  469. Characteristic‏‎ (4 categories)
  470. Level 2 training‏‎ (4 categories)
  471. Preservation‏‎ (4 categories)
  472. Base line‏‎ (4 categories)
  473. Nominal Range‏‎ (4 categories)
  474. Dielectric lens‏‎ (4 categories)
  475. Retro-Reflector‏‎ (4 categories)
  476. Pseudolite (pseudo-satellite)‏‎ (4 categories)
  477. Beat oscillator‏‎ (4 categories)
  478. Whistle buoy‏‎ (4 categories)
  479. Cones‏‎ (4 categories)
  480. Blinking‏‎ (4 categories)
  481. Oscillating water column‏‎ (4 categories)
  482. Converged Beam‏‎ (4 categories)
  483. Total System Error (TSE)‏‎ (4 categories)
  484. Bright display‏‎ (4 categories)
  485. Amplitude of an observed heavenly body‏‎ (4 categories)
  486. Coverage‏‎ (4 categories)
  487. Buoyant beacon‏‎ (4 categories)
  488. Antenna feed‏‎ (4 categories)
  489. Echoing area‏‎ (4 categories)
  490. Cycle‏‎ (4 categories)
  491. Rebuilding‏‎ (4 categories)
  492. Cardioid reception‏‎ (4 categories)
  493. Atmospheric Refraction‏‎ (4 categories)
  494. Electroluminescence‏‎ (4 categories)
  495. Aural masking‏‎ (4 categories)
  496. Modulator‏‎ (4 categories)
  497. Lateral deviation error‏‎ (4 categories)
  498. Position line‏‎ (4 categories)
  499. Single-Flashing Light‏‎ (4 categories)
  500. Occasional Light‏‎ (4 categories)

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