1.
Development of the TZJ40(B) vertical derrick's traction-driven rig
TZJ40(B)直立井架拖挂钻机的研制
2.
stacking capacity of derrick
井架的钻杆立根容量
3.
Here and there at long distances upon the canon sides rose the headframes of a mine.
峡谷两侧，一路过去，到处屹立着矿井井架。
4.
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
5.
New construction technology of setting large steel-structure shaft frame during shaft sinking
凿井期间起立大型钢结构井架施工新技术
6.
Steel derricks rose to meet our eyes as we drew nearer to the oil fields.
我们快到油田时看到了矗立的井架。
7.
a framework erected over an oil well to allow drill tubes to be raised and lowered.
油井上方直立的一个架子，它能使钻塔上升或下降。
8.
"drilling rig, platform"
"钻井井架,钻井平台,见 oil (drilling) rig"
9.
laser guide of vertical shaft
立井激光指向[法]
10.
Experience on the shrink shaft drilling construction reserve period
缩短立井井筒凿井施工准备期的经验
11.
bald-headed derrick
无天车工作平台的井架
12.
leg base anchorage
井架大腿底脚的固定
13.
self-gured structural mast
自带绷绳的轻便井架
14.
free standing mast
不用绷绳的轻便井架
15.
outside monkey board
折叠式井架外侧二层台
16.
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
17.
The Intensity Testing of Main Well Headframe in Dai Zhuang Mine Shangdong
山东岱庄生建煤矿主井井架强度检验
18.
A framework to support or strengthen a mine or shaft
井壁基架用来支承或加固矿井的构筑