英语词汇“grout cover”的翻译、意思、用法、释义-英汉汉英双解词典-良福网

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词汇	grout cover
释义	grout cover 止浆垫；井筒工作面预注浆时；预先在含水层上方构筑的；能够承受最大注浆压力压强并防止向掘进工作面漏浆、跑浆的混凝土构筑物。
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