1) repeated pulling by directional drilling
定向钻拖拉法
2) directional drilling and towing pipe
定向钻孔拉管
3) projected-vertical-plane method of orienting
钻杆定向下钻法
4) longitudinal pull
纵向拖拉
5) dragging method
拖拉法
1.
Construction technology of steel concrete combination continuous beam for a long-span bridge crossing railway by dragging method
拖拉法跨铁路特大桥钢砼结合连续梁施工技术
6) directional drilling crossing method
定向钻穿越法
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条