英语词汇“expansion bolt”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	expansion bolt
释义	WordReference Random House Unabridged Dictionary of American English © 2024 expan′sion bolt′, [Building Trades.] Buildinga bolt inserted into a hole drilled in masonry and mechanically expanded to serve as an anchor for shelves, timbers, etc.
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