... 掘进机 development machine 掘进机刀具 boring machine cutter 掘进机械 driving machinery ...
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Large torsion hydraulic boring machine, cutter heads and cutters are chosen and suitable boring procedures are well prepared, thus good effects have been achieved in the construction.
经选用合理的大扭矩液压钻机、刀盘和刀具并制定合适的钻孔工艺，在施工中取得良好的效果。
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