钻头: boring crown; bore bit; dril ...试钻: test drilling过程: process; procedure; transver ...钻头试验: head dip test牙轮钻头试验钻机: blast hole testing drill; rock bit testing rig钻过的: gebohrt drilled试钻机: test boring machine试钻孔: test bore; test boring; trial bore hole试钻探: scout boring; scout drilling; trial boring已钻过的: drilled in钻过孔的: drilled取心试钻: core test试钻钻孔: exploratory bore-hole先行试钻: pilot boring; pilotboring钻头: boring crown; bore bit; drilling bit; [机械工程] bit (of a drill) 三牙轮钻头 three cone bit; 卸下钻头 break out a bit; 装上钻头 brace a bit变水头试验: falling head permeability常水头试验: constant head test码头试车: dock trials码头试验: dock test上水头试验: rising head test水头试验: water head test突头试件: headed test specimen试钻；【机械工程】钻验。: trial boring恒定水头试验；常水头试验: constant head test荷兰探头试验: dutch cone test
