英语词汇“block system”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	block system
释义	WordReference Random House Unabridged Dictionary of American English © 2024 block′ sys′tem, [Railroads.] Rail Transporta series of consecutive blocks. Cf. block (def. 22). Rail Transporta system of blocks and block signals for controlling train movements. 1860–65
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