英语词汇“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-现代词典

单词	block signal
释义	block signal —block signaling. a fixed railroad signal governing the movements of trains entering and using a given section of track. [1880-85]
随便看	punched tape puncheon Punchinello punching bag punch line punch list punch-out punch press punch spoon punch-up punchy punctate punctatim punctation punctiform punctilio punctilious punctual punctuality punctuate punctuated equilibrium punctuation punctuationalism punctuation mark punctulate

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