英语词汇“hinged bar”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	hinged bar
释义	hinged bar hinged bar [′hinjd ¦bär] (mining engineering) A steel extension bar placed in contact with the mine roof perpendicular to the longwall face and supported by yielding steel props. Also known as link bar.
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