1.
The Analysis of Principle for Drill Frame of MG100 Hydraulic Roof Bolter
MG100全液压锚杆钻机钻架工作原理分析
2.
A tall framework over a drilled hole, especially an oil well, used to support boring equipment or hoist and lower lengths of pipe.
钻架竖在钻井（尤指油井）之上的支架，用来支撑钻孔设备或提升和下放钻管
3.
bar rigged drifter
架式风钻，架式凿岩机
4.
"drilling rig, platform"
"钻井井架,钻井平台,见 oil (drilling) rig"
5.
back-brake support
顿钻捞砂轮刹车支架
6.
stacking capacity of derrick
井架的钻杆立根容量
7.
bridge of the bit
四牙轮钻头牙轮支架
8.
The rotary carriage provides rotary and vertical motion to the drill string and bit.
转动滑架为钻柱和钻头提供转动和垂直移动。
9.
A machine in the tower gradually cuts a narrow hole down into the ground.
井架内的钻机渐渐地往地下钻出一个小洞来。
10.
Preliminary Study on Well Drilling Technique of Semi-Submersible Drilling Platform with Dual Derrick Rig
半潜式钻井平台双井架钻机作业工艺初步研究
11.
derrick ,well-drilling, not mounted on lorries
钻井架,未安在载货汽车上
12.
The mast assem-bly supports the rotary drill head and its hoisting mechanism.
支架组件支持转动钻头及其提升机构。
13.
mat-supported drilling platform
刚性腿座架支承的钻井平台
14.
3.10 Do you understand? Call the assistant driller (A.D.) or derrickmen down to help us.
明白了吗？叫副司钻或井架工下来帮忙。
15.
Analysis and Calculation of Static Stress of Rig Derrick by CAE Software;
应用CAE软件分析计算钻机井架静应力
16.
The Research of 3D Modeling for Tectonic-Stratigraphic Framework Based on Borehole Data;
基于钻孔资料构造—地层格架三维建模
17.
Development of the TZJ40(B) vertical derrick's traction-driven rig
TZJ40(B)直立井架拖挂钻机的研制
18.
Brief Study on the Rock Fragmentation Test Bed of Air Rotary Percussion Drilling
空气冲旋钻井破岩试验台架研制初探