drill shaft

短语词组

短语

• rotary drill for shaft sinking 凿竖井用回式钻机
• drill shaft pile 钻孔灌注桩
• Number of drill shaft 钻轴数
• drill out crank shaft 钻空曲柄轴
• multiple drill shaft sinker 多钻凿井机
• multiple -drill shaft sinker 多钻凿井机
• drill -moving drive shaft 移机传动轴
• electron -shaft drill 电子束钻井
• stub shaft drill 短轴钻机
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