“掏槽”用英语怎么说

近几年来,又再度使用了裂缝掏槽.During recent years the seam cut has once again come into use.掏槽方式及布孔参数影响着掘进效率和成本.The cut way and hole parameters affect the drivage efficiency and cost.严重突出煤层掘进水力掏槽防突措施在国际上是一种防突新技术.Grave protrusion coal ...

“掏槽”的拼音为：tāo cáo...