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
drilling lathe钻孔车床
drill-string钻柱
drill planting畦植
drill carriage钻轴滑座,钻车,凿岩机车
drill hole die钻孔模
drilling cramp钻架
drilling table台砧
drill jig bush钻套
drill's seeder
Drilling tests钻削试验