英语词汇“forepoling, advance timbering”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	forepoling, advance timbering
释义	forepoling, advance timbering 超前支护；在松软或破碎带,为了防止岩石冒落,超前于掘进工作面进行的支护。
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