井架

No longer need or use a similar double root consisting of three drill pipe drilling means root, it can reduce the derrick height, the weight of the base can be reduced.

不再需要采用类似双根或三根钻杆构成的立根钻井方式，因此井架高度可以减小，底座的重量可以减轻。

Its nonlinear effect has been dealt with equivalently in this thesis.

本文对井架绷绳的非线性效应进行了等效处理。

In an emergency, the derrickman can quickly reach the ground by an escape line often called the Geronimo line.

在危急情况下，井架工能够通过一通常称之为geronimo钢丝绳的逃生钢丝绳很快地到达地面。

Gin Pole - An "A" frame structure located at the top of standard derricks used to lift and lower the crown block into position.

天车人字架：一个" A "形框架结构，位于标准井架的顶部，用于起升和放下天车到指定位置。

The result of the measurement shows that the maximum stress on the gin pole is 120.8 MPa and that on the mast is 191 .2MPa,the measured values are very close to the calculated values,and this proves the hoisting method correct.

测量结果表明，人字架最大应力120.8MPa，井架最大应力191.2MPa，实际测量应力值与理论计算值十分接近，说明起升方法正确。

We soon realized that the black mark was Baba Grugru oil spraying up into the air above the derrick.

不久我们就意识到那黑色的东西正是喷过井架射入高空的巴巴古尔古尔的石油。

At the top of the shaft there is usually a structure called a headframe.

在井筒顶部通常都有一个叫作井架的建筑，其上装有一些采矿作业所需要的机械设备。

At the top of the shaft there is usually a structure called a headframe. It contains some of the machinery necessary for mining operation.

在井筒顶部通常都有一个叫作井架的建筑，其上装有一些采矿作业所需要的机械设备。

Many examples of such headframe have been built and have provided good service.

许多矿井都建有这种类型井架，大都生产情况良好。

Through an engineering practice, this paper presented the techniques of headframe lifting , and discussed a series of problems occurred in the process of headframe lifting .

通过实际工程实例，对井架的起吊工艺进行了有针对性的叙述；同时，对起吊过程中出现的一系列问题，做出了积极的讨论。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。