英语词汇“heavy-duty pier, hydraulic breaker prop”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	heavy-duty pier, hydraulic breaker prop
释义	heavy-duty pier, hydraulic breaker prop 墩柱；以液压为动力实现升降、前移等运动的重型放顶柱。
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