The paper introduced the excavation features,blasting method and parameters,construction technology and organization of the shallow borehole smooth blasting technology in clay and rock roadway.是什么意思_The paper introduced the excavation features,blasting method and parameters,construction technology and organization of the shallow borehole smooth blasting technology in clay and rock roadway.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句