英语词汇“spragger”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	spragger
释义	spragger spragger [′sprag·ər] (mining engineering) In coal mining, a laborer who rides trains of cars and controls their free movement down gently sloping inclines by throwing switches and by poking sprags between the wheel spokes to stop them.
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