The latest constructing machine and the newest technology were adopted to ensure that the borehole is perpendicular to the rock face of roof and that the depth of borehole and the torsional moment of the anchoring bolt meet the design requirement.是什么意思_The latest constructing machine and the newest technology were adopted to ensure that the borehole is perpendicular to the rock face of roof and that the depth of borehole and the torsional moment of the anchoring bolt meet the design requirement.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句