1.
stacking capacity of derrick
![点击朗读](/dictall/images/read.gif)
井架的钻杆立根容量
2.
According to the drillpipe structural characteristics, a dolly appropriate for drillpipe and Kelly detection is designed, of which its probe is adjustable.
根据钻杆的结构特点,设计了探头距离可调的适用于圆钻杆和方钻杆的探测小车。
3.
Texas style of racking pipe
![点击朗读](/dictall/images/read.gif)
得克萨斯钻杆立柱排列法
4.
Analysis of force state for adjustment drill frame of roof bolter
![点击朗读](/dictall/images/read.gif)
锚杆钻机立面变角机构受力状态分析
5.
Study on dynamic simulation research of single drill pipe based on finite element method
![点击朗读](/dictall/images/read.gif)
基于有限元法的单根钻杆动力学仿真模拟分析
6.
Drill stem tests are taken from some wells almost immediately after drilling and completion operations.
有些井刚钻完并进行完井作业后,就立即采取钻杆测试。
7.
Establishment Mathematical Models between Heat Treatment Parameter and Mechanical Properties of High-strength Drilling Pipe
高强钻杆管性能与热处理参数关系模型的建立
8.
A study of the surface crack at thread root of tool joint pins by the aid of finite element method.
石油钻杆公接头螺纹牙根部表面裂纹有限元计算
9.
great lengths of drill pipe which are rotated by an engine at the top,
![点击朗读](/dictall/images/read.gif)
钻杆顶部安装的发动机带动钻杆旋转,
10.
He placed his hat on a pole in the market place.
![点击朗读](/dictall/images/read.gif)
他把自己的帽子放在市场上立着的一根杆子上。
11.
Genetic Transformation System of Dioscorea Zingiberensis C. H. Wright Mediated by Agrobacterium Tumfaciens;
根癌农杆菌介导的盾叶薯蓣转化体系的建立
12.
Establishment of Genetic Transformation System of Sedum Spectabile Boreau by Agrobacterium Rhizogenes
发根农杆菌介导八宝景天遗传转化体系的建立
13.
The Design and Research of the Three Stations Vertical Injection Equipment for Rubber Stator of Screw Drill and Screw Pump and Simulation of 3D Dynamic Process;
螺杆钻具和螺杆泵橡胶定子的三工位立式注射成型设备的设计研究与三维动态模拟
14.
Stock stout, forming an erect trunk sometimes up to 1 m tall, apex densely covered with subulate shining brown scales.
根状茎粗短,直立,高可达1米,顶端密被棕褐色、具光泽的钻形鳞片。
15.
hard banding of tool joint
![点击朗读](/dictall/images/read.gif)
钻杆接头表面加硬圈
16.
Ingersoll-Rand jumbo column
![点击朗读](/dictall/images/read.gif)
英格索尔-兰德钻车托杆
17.
plain clinometer
![点击朗读](/dictall/images/read.gif)
钻杆下部装的测斜仪
18.
hard facing of tool joint
![点击朗读](/dictall/images/read.gif)
钻杆接头表面加硬层