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- The time-domain response model of flaw long screw drill and pour pile was established based on the damped wave equation of pile-soil interaction system. 从桩-土系统共同作用的波动阻尼方程入手,建立了成层土中缺陷长螺旋钻孔灌注桩的时域响应模型。
- long screw drilling 长螺旋钻孔
- long screw drilled dry-holes 长螺旋干成孔
- long screw pole drilling machine 长螺杆钻孔机
- This paper analyses how the whipstocking screw drill tools easily trip in casing. 因此，结构弯角必然较大，这就提出了这种钻具在套管内能否顺利下入的问题。
- The operation performance of PDC bits with screw drill tool appplied now in oilfield were analyzed comprehensively. 综合分析了目前使用的PDC钻头和螺杆钻具工作特性。
- WARRANTY ALERT: You also have to remove the longer screw (screw #7) hiding beneath the warranty sticker. 保证警示：您也可以删除不再螺钉（螺钉%237）匿藏保修贴纸。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- Keywords screw drill tool;cardan shaft;design;application; 螺杆钻具;万向轴;设计;应用;
- You can keep my book as long as you like. 我的书你要借多久都随你的便。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- The beggar spun a long yarn about his misfortunes. 那个乞丐编造了一大篇自己如何遭遇不幸的故事。
- Design of CAT System for Screw Drilling Tools and Screw Drilling Motors 螺杆钻具、螺杆泵性能计算机辅助测试系统的设计
- How long will our food supplies hold out? 我们的储粮还能维持多久?
- long screw high-pressure pumping concrete pile technology 长螺旋高压桩
- It was a long trudge up the hill. 那段上山的路很难走。
- Mr Jones has a long history of heart trouble. 琼斯先生有长期的心脏病史。
- Cream cakes are no long a luxury. 奶油蛋糕再也不是奢侈品了。
- It took a long while to do the work. 做这个工作花了许多时间。
