1) three-pole derrick
三脚钻塔
2) tripoint rock drill
三脚架式钻岩机
4) drill tower
钻塔
1.
The design of this drill tower and its application in construction of 60-inclined holes are given .
根据XY系列钻机的结构特点,设计了吊臂式钻塔,以满足不同倾角斜孔施工对钻塔的要求,重点介绍了该钻塔的设计应用及在60°斜孔施工中的适应性。
2.
In this paper,drill tower was defined and classified,basic parameters for drill tower design were analyzed,different characteristics and the unified number of drill tower were summed up,calculation and optimization of drill tower design and the development trend for new type of drill tower were also briefly introduced.
给出了钻塔的定义,对各种钻塔进行了分类,详细分析了钻塔设计的基本参数,系统总结了各种钻塔特点和统一编号问题,简要介绍了钻塔设计计算和优化以及新型的钻塔发展趋势。
5) derrick
[英]['derɪk] [美]['dɛrɪk]
钻塔
1.
An alalysis is given the force-bearing condition of the derrick of the top-drive drill rig under ac-tion of the twisting moment exerted by the rotating drill tools and the turn-over moment resulted from pulldownof the feed frame while drilling.
分析了动力头式钻机之钻塔在钻进过程中，所受回转钻具的反扭矩与给进架给进力而造成的翻转力矩作用下的受力情况。
6) drilling tower
钻塔
1.
Structural design of drilling tower and 3D modeling by Pro/E software are stated,structural simulation and finite element analyses are made on the model based on Pre/MECHANICA.
论述了利用 Pro/E 软件对钻塔进行结构设计和三维建模,并利用 Pro/MECHANICA 模块对所建模型进行结构仿真和有限元分析,对不同的结构进行对比,得到最优化的尺寸结构。
补充资料：光脚阳线和光脚阴线
光脚阳线和光脚阴线——
光脚阳线和光脚阴线就是没有下影线的阳线和阴线。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条