英语词汇“jeffrey single-roll crusher”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	jeffrey single-roll crusher
释义	Jeffrey single-roll crusher Jeffrey single-roll crusher [′jef·rē ¦siŋ·gəl ‚rōl ‚krəsh·ər] (mining engineering) A simple type of crusher for coal, with a drum to which are bolted toothed segments designed to grip the coal, thus forcing it down into the crushing opening.
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Jeffrey single-roll crusher