英语词汇“block signal”是什么意思，“block signal”的读音、用法及例句翻译-烛光网

词汇	block signal
释义	block signaln.（名词） A fixed signal at the entrance to a railroad block, indicating whether or not trains may enter.火车行止信号：火车站入口处，指示火车是否可以进站的固定信号
随便看	streetcar street cred street fighter street hockey streetlight street name streets streetscape streetscapes street-smart street smarts street theater streetwalker streetwise street–smart streig- strength strengthen strengthened strengthening strengthens strengths strenuous strep streps

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