The broken situation of the roof supported by bolting was analysed,Belting and bolting with wire mesh was successfully tested in Jinpushan.是什么意思_The broken situation of the roof supported by bolting was analysed,Belting and bolting with wire mesh was successfully tested in Jinpushan.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句