英语词汇“drop-bottom car”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	drop-bottom car
释义	drop-bottom car drop-bottom car [′dräp ‚bäd·əm ‚kär] (mining engineering) A mine car designed so that flaps drop open in the bottom to allow the coal to fall out as the car passes over the dump; flaps close as the car leaves.
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