Uncharted lights and radar beacon transmissions may be ________ near the station．
相似题目
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There is a possibility that small vessel，ice and other floating objects may not be（）by radar at an adequate range.
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The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?（）.
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The officer of the watch should use radar when appropriate and at all times in（）waters.
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Synchrocope and synchro light are located on （） of main switchboard.
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Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.
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Uncharted lights，fog signals and radar beacon transmissions may be（）near the station.
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From your position you observe a rotating white and green light to the north. This light is most likely（）.
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Radar bandwidth is normally（）to the range scale and the associated pulse length.
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You see a vessel displaying three lights in a vertical line.The highest and lowest lights are red and the middle light is white.She is also showing a white light at the stern，which is lower than the forward light.It could be a（）.
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Radar makes it possible and much safer for us to sail（）.
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Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
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Generally, there are two kinds of light pollution: ecological pollution and astronomical light pollution.不属于common knowledge.
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Radar makes it possible and much safer for us to sail __.
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108. Details of coast radio stations and radar stations can be found in _____.
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143. Details of Coast Radio Station and Radar Stations and Read Stations can found in （ ）
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阅读附件，完成下面填空 Radar and sonar are based on similar……………
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74. For details of these and other lights the larger scale charts and Admiralty Lists should be ____
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When wood is burnt, it heat and light, together with heavy smoke.
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The babies would "smile and bubble" at the lights because ______.
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◑Cold and dry.◑Humidity and heat.◑Light rain.◑Variation.
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翻译句子 Over there was light and the hint of warmth. （）
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The babies would "smile and bubble" at the lights because___．
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The basic principle of radar is illustrated by what happens when one shouts in a e. The echoof the shouting 11 the walls helps a person determine the size of i cave. With radar, however , the waves are radio waves instead of 12 waves. dio waves travel 13 the speed of light, about 300,000 kilometers in a second. A lar set 14 a short burst of radio waves. Then it receives the echoes 15 when waves bounce (Silt) off objects. By determining the time it 16 for the echoes to imi to the radar set, a trained technician 17 determine the distance between the [ar set and other objects. The word "radar", 18 , gets its name from the term dio detection and ranging." "Ranging" is the term for detection of the 19 between object and the radar set.
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Before long, a young woman appeared: short, with short______and pale-blue eyes.（light brown or light yellow）（）
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