英语词汇“beam arm”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	beam arm
释义	beam arm noun 1. : a forked timber bolted to a beam next to a deck opening — called also fork beam 2. : a split end of a steel deck beam bent over so as to be bolted to the frame where it forms a knee
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