The number of drill rigs actively drilling for gas has barely budged, though it has been down in the US three of the last four weeks.
积极进行天然气钻探的钻井数量也几乎未发生变化。
After identifying the PID number, using svmon can drill down to this level.
在确定了PID数值之后，可以使用svmon进一步深入研究。
To modify the hostname and port number, open the WSDL file with the WSDL editor, and drill down on the services until you get to the SOAP address.
要修改主机名和端口号，请使用WSDL编辑器打开 WSDL文件，并查看服务，直到获得SOAP地址。
There are few systematical formulas to calculate the roller number and the distances between rollers in crawler travel system of rotary pile drill.
旋挖钻机履带式行走装置支重轮之间的距离及其数量的多少，尚缺少系统的计算公式。
This type of drill may have either three or four flutes and equal number of margins, which ensure superior guidance, thus resulting in high machining accuracy.
这类钻头可以有三条或四条出屑槽及相同数量的保证良好导向的导向边，这样使得加工有高精度。
Compared the number of cone bit bearing capacity and concluded: diamond wheel bearing life is far greater than the cone drill bit bearings.
对比了牙轮钻头的轴承能力数，得出结论：轮式金刚石钻头轴承寿命远远大于牙轮钻头轴承。
In order to enhance the service hfe of hollow steel for rock drill stem, the odd number side section shape hollow steel has been designed.
为了提高凿岩钎杆用中空钢的使用寿命，设计了奇数边截面形状的中空钢。
By many field reviews and validations in this study, a great number of terra drill data are collected.
本次研究通过多次野外实地考察和验证，搜集了大量的地质钻孔资料。
Due to the increasing number of deep Wells and directional Wells being drilled, longitudinal fracture occurred on the box-ended drill pipe tool joint is often reported.
近年来由于深井、定向井等逐渐增多，油气井钻井中钻杆内螺纹接头纵向开裂失效成为常发事故。
Due to the increasing number of deep Wells and directional Wells being drilled, longitudinal fracture occurred on the box-ended drill pipe tool joint is often reported.
近年来由于深井、定向井等逐渐增多，油气井钻井中钻杆内螺纹接头纵向开裂失效成为常发事故。
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