1) horizontal screw drilling
水平螺旋钻
1.
The technical measures and its corresponding characters of pipe jacking,horizontal screw drilling and small-sized directional drilling are described.
介绍了非开挖教设管道施工技术在西南成品油管道工程中的应用情况,分别阐述了顶管、水平螺旋钻、小型定向钻等技术措施及其各自的特点。
2) horizontal spiral drilling machine
水平螺旋钻机
3) horizontal spiral drilling method
水平螺旋钻进法
1.
the horizontal spiral drilling method and then presents its application into the construction of a small-diameter concrete pipeline.
文章简要介绍了一种小口径管道非开挖施工技术——水平螺旋钻进法,并结合工程实例,介绍了该法在小口径钢筋混凝土排水管道施工中的应用。
4) low-helix drill
平螺旋钻
5) Spiral-flute counterbore (or core drill)
螺旋槽平底锪钻
6) horizontal coil tube
水平螺旋管
1.
An experimental investigation is made to study the enhanced condensation heat transfer of horizontal coil tube with longitudinal “V”type grooves.
用实验方法研究水平螺旋管管外有纵向 V型槽时凝结换热的强化问题。
2.
Studied is the enhanced condensation heat transfer of horizontal coil tube with longitudinal “V” type grooves.
用实验的方法研究了水平螺旋管管外有纵向Ｖ型槽时的凝结换热的强化问题。
3.
Investigation is made for enhanced condensation outside the horizontal coil tubes with V grooves.
对水平螺旋管外开有Ｖ型槽时的凝结换热强化问题进行了理论研究。
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