英语词汇“expansion rollers”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 rollers
释义	expansion rollers expansion rollers [ik′span·shən ‚rō·lərz] (civil engineering) Rollers fitted to one support of a bridge or truss to allow for thermal expansion and contraction.
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