bald-headed derrick
无天车工作平台的井架
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
The heavy-duty stencil plate network can be used in the pedal network of oil truck, the workbench, escalator, walking in heavy-duty machinery and boiler, oil mine, locomotive, ten thousand tons of steamers, etc.
重型钢板网可用于油罐车脚踏网，重型机械及锅炉、矿井、车、吨轮船等的工作平台、梯、道。
Open raise implies that building work is limited to the raise catwalk and the basis of a simple platform on which drilling personnel stand.
开放式天井，是指那些开挖过程中只需设置天井升降梯道及供钻工站立的简单基础平台的天井。
A Dynamic Workflow Engine Based on .Net Framework;
基于．Net平台架构的动态工作流引擎
On the Applications of Trackless Rubber-Tired Carts to Inclined Shaft Transforming into Horizontal Laneway
浅谈无轨胶轮车在斜井转平巷施工中的应用
Such a platform as used by one working underneath a motor vehicle.
修车平台使人能够在机动车底下工作或干类似工作的平台
DESIGN AND APPLICATION OF A NEW SOFTWARE SYSTEM OF THE WORKING PLATFORMS OF MUDLOGGING
一种新的录井工作平台软件系统的设计和应用
the plentiful supply of food thrown overboard by the crew on the rigs;
钻井平台工作人员抛到海里充足的食物；
Cost Analysis of Operating Platform in Construction of Lift Well of High-Rise Buildings;
高层建筑电梯井施工操作平台装置的造价分析
mat-supported drilling platform
刚性腿座架支承的钻井平台
"drilling rig, platform"
"钻井井架,钻井平台,见 oil (drilling) rig"
Applications ofTop-down Construction of Basement Terrace in Heapstead to Parallel Working of Mine Construction and Civil Engineering
井口房地下室平台“逆作法”施工在矿建、土建平行作业中的应用
Development of Module Drawworks for 9 000 m Offshore Drilling Rig
海洋平台9000m钻井模块绞车的研制
A low flat framework that rolls on casters, used by a mechanic working beneath an automobile.
轮脚架在汽车底下工作的修理工使用的、在脚轮上滚动的低平框架
roof-powered platform
顶吊架上的升降工作台
Horizontal Drilling and Completion Techniques for Well Tai H5-1
台H5-1水平井钻井完井工艺技术
Research of Workflow Development Platform and Formal Modeling in Workflow Process;
工作流开发平台框架的研究和工作流形式化建模