英语词汇“roof bolting”的翻译、意思、用法、释义-英汉汉英词典

单词	roof bolting
释义	roof bolting 【采矿】顶板锚杆支护以上来源于：《21世纪大英汉词典》 roof bolting顶磐栓固 ; 岩磐栓固roof bolting頂磐栓固 ; 岩磐栓固礦冶工程名詞
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