A special heavylift derrick may also be fitted, covering one or two holds.
特殊的重型井架还可以装, 覆盖一个或两个持有。

Secured all derrick booms and other fittings, then battened down all hatches.
德瑞克不是。但是他要我明天上广播节目演奏。

Drilling derrick that working many years often has the defect of bending bar.
服役多年的钻机井架常会出现局部杆件弯曲现象。

Single girder truss gantry crane The ginpole is the simplest form of derrick.
桁架式单梁龙门起重机起重吊杆是一种最简单的起重机。

NONLINEAR ANALYSIS OF THE MECHANICAL BEHAVIOUR OF OIL DERRICK STEEL STRUCTURES
采油井架钢结构非线性力学行为分析

Go to the courtyard park in Lancet, where Francis is due to meet with Derrick.
来到柳叶观庭公园，那个弗兰西斯与德瑞克见面的地方。

Stability, static loads and fatigue life on a derrick are calculated in designing.
对井架进行了稳定性，静强度和疲劳强度设计计算。

The aim of the derrick latched onto the cotton bales and lifted them into the hold.
起重机吊臂抓住棉花包，把它们吊进货舱。

The drilling crew is responsible to skid the derrick back to the drilling position.
钻井班移动井架到工作位置。

The tong counterweights must not rest on derrick subfloor, derrick substructure sills.
不能让大钳平衡铊靠到钻台下边或井架底座上不起作用。

Statical force analysis of derrick crown block structure by using finite element method
钻塔天车结构有限元静力分析

On basis of the reliability theory, the basic concept of derrick reliability is expounded.
根据可靠性理论基础, 阐述了井架可靠度的基本概念。

Manufacture tech. Of derrick cant frame and its quality assurance measure at Xingdong bypit
邢东副井井架斜架制作工艺及质量保证措施

At the end of this article, two examples of different types of derrick structures were analyzed.
文中给出了两个采油井架的分析实例。

The jacket, topside and yoke assembly were separately lifted and installed by using a derrick barge.
导管架、上部结构和软刚臂分别是用浮吊吊装的。

Accoreing to the results of analysis, some improvment opinions on design of the derrick were raiaed.
并从整体角度分析了绷绳的作用

A fountain of oil gushed up through the floor and high over the top of the derrick into the darkness.
油喷涌上来了, 穿过钻台, 超过井架, 喷入夜空。

Major Performance Characteristic of Derrick Crane 1. Simple structure， easy assembly and transportation.
杆式起重机主要性能特点1，结构简单，安装运输方便。

Oil derrick When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。

After careful check on sections of derrick to confirm everything in good condition, derrick maybe test hoisted.
井架各部分经全面检查, 确认完好后方可试起井架。

Application of Derrick High Frequency Fine Screen in Transformation for Capacity Expansion of Ekou Iron Concentrator
德瑞克高频细筛在峨口铁矿选厂扩能改造中的应用

In the dissertation, we also consider the safety evaluation method of causing wind vibration of the oil rig derrick.
探讨了钻机井架风致振动的安全评价方法。

Derrickcrown positions for repairing wells are always not provided with safe operating platforms for derrick crowns.
修井作业的井架天车部位，一直没有天车安全操作平台。

Moreover， derrick can also according to drive way， the work type， flexibility and use etc. s to carry on a classification.
起货绞车和用于货物装卸的各种吊杆系统一起使用。

The test results of applying Derrick Stack high frequency sizer are briefly summarized and the change being achieved and the expected benefits are discussed.
简要总结了应用德瑞克叠式高频细筛得试验结果。