英语词汇“position light signal”的意思、释义、用法解释及翻译-春雷网

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词汇	position light signal
释义	Definition of position light signal in English: position light signal noun Railways An electric fixed signal which gives instructions to the train driver by the position of the lights on its face, rather than by the colour of the lights. Origin Early 20th century; earliest use found in Journal of the Franklin Institute. Definition of position light signal in US English: position light signal noun Railways An electric fixed signal which gives instructions to the train driver by the position of the lights on its face, rather than by the colour of the lights. Origin Early 20th century; earliest use found in Journal of the Franklin Institute.
随便看	thread mark thread-needle Threadneedle Street thread-paper threads threads threadss thread vein threadworm threadworms thready threap threat threaten threatened threatened by threatener threatener threatening threatening threateningly threateningly threateningly threatening/menacing look threatens

　

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