英语词汇“rock duster”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	rock duster
释义	rock duster rock duster [′räk ‚dəs·tər] (mining engineering) A machine that distributes rock dust over the interior surfaces of a coal mine by means of air to prevent coal dust explosions. Also known as rock dust distributor.
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