英语词汇“fall of ground, roof fall”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	fall of ground, roof fall
释义	fall of ground, roof fall 冒顶；地下硐室的顶板突然塌落的事故现象。
随便看	screwed type fitting screwed-typejoint screwed -type joint screwed union screwed up screwed-up screwed up my courage screwed valve screwed-valve screwed washer screwed with screwed you screw effect screw efficiency Screw element Screw Elements Combination screw elevation screw elevator screw end conical pi screw end conical pin screw engine screw entrance point screwer screwers screwes ends