1.
Procedures and QC for Manufacturing of Drilling Rig Mast
套装井架的制造工艺措施及质量控制
2.
Both the derrick deviation and the wellheads eccentricity will cause the serious wearing of the casing (or casing protecting tube) close to the wellhead.
井架不正或井口偏心，会造成近井口套管（或套管防磨套）的磨损。
3.
On Construction Technology of Shaft Steel Frame of Wangfenggang Shaft in No.1 Xiejiaji Coal Mine
谢一矿望峰岗主井钢结构立井套架的施工技术
4.
On the Derrick Installation of ShaftⅣ_G In main Shaft of a Coalmine
浅谈塔然高勒煤矿主井IV_G凿井井架安装
5.
Development of valve device for injection-production integrated technology of heavy oil thermal recovery slim holes
稠油热采井注采一体化配套开关装置
6.
The Improvement of the Way of Making And Installing Tie-in of Steel Structural Derrick;
钢结构井架制作安装接头形式的改进
7.
The Research and Application of the Assembling Art of Large Box-type Derrick
大型箱型井架组装工艺的研究与应用
8.
Technology Applications of Lifting Derrick with Method of Doublemast and Semi-overturned
双桅杆半翻转法吊装井架的技术应用
9.
The airplane had dual controls.
这架飞机有两套操纵装置。
10.
This toy aircraft is made from a kit.
这架玩具飞机是由一套元件装配成的。
11.
oil well special-purpose materials, including oil pipes, casings, well head assemblies and underwater appliances;
油井专用材料，包括油管、套管和井口装置、水下器具；
12.
casing-actuated intermitter
套管控制的间歇抽油装置；套管控制的间歇出油井
13.
Calculation of lateral buckling critical load of crossbeam on frame for hoisting blowout preventer. CPM
封井器吊装架横梁的侧向屈曲临界载荷计算
14.
The Subsidiary Frame Structure Analysis and Upside Parts' Layout Optimization of Cementing Truck;
固井水泥车副车架结构分析和上装布局优化
15.
Application on the Intelligent Operation Device of Overhead Monorail Cableway Underground Coal Mine
煤矿井下架空索道智能运行装置的应用
16.
A set of light, open shelves for ornaments.
陈设架一套用以摆放装饰品的轻巧、无遮盖的架子
17.
Well Leakage Treatment on 244.5mm Case of Well Lishen 1 before Cementing
梨深1井Φ244.5mm套管固井前的井漏处理
18.
The substructure is a box-on-box design for easy installation.
采用无棚绳前开口型井架，整体起升，低位安装，方便快捷。