英语词汇“automatic block signal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	automatic block signal
释义	automatic block signal noun : a railroad signal at the entrance of a block actuated automatically by and governing the movement of trains entering and using the block
随便看	justitiae justle justly justness just-noticeable difference just price justs just the same jus utendi jut jut jute jute jute board jute butts jute paper jutia jutish jut-jawed jutlandic jutting juttingly jutty juv juvabione

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