drillern.钻孔机;钻床;钻探工
drilln.钻孔机;钻子;反复操练;播种机v.练习;钻孔;(军事)训练
drill headroom钻机头部空间
drilling shift钻眼班
drilling depth钻孔深度
drill operator钻井装置操驻
drilling field钻场
drill trousers厚斜纹布裤子
Drilling shaft钻杆
drill pressure钻头压力,钻头负载
drilled nozzle钻制喷管
Drill drainage锥颅血肿抽吸