loose end,掏槽的采煤工祖,同义词,英汉翻译,英汉例句-找单词

loose end

1)loose end,掏槽的采煤工祖2)coal wall,采煤工祖3)mechanized coal face,机械化采煤工祖4)holer['həulə],掏槽工5)face run,采煤机在工祖移动的时间6)reinforced cut,加强的掏槽