短語詞組短語drill l rig 架式鉆機(jī)percussion drill percussive rig 沖擊鉆機(jī)R type drill rig R 型鉆機(jī)crawler type drill rig 履帶式鉆車horizontal directional drill rig 水平定向鉆機(jī)open air drill rig 露天鉆機(jī)semisubmersible drill rig 半潛式鉆探設(shè)備underground drill rig 坑道鉆機(jī)fan drill rig 扇形孔鑿巖臺車 返回 drill rig