滑轮组

It has to be tail because it is like a giant block and tackle, and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom

井架必须很高，因为它像一个巨型滑轮组。我们必须把很大的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

It has to be tall because it is like a giant block and tackle ,and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are roated bu an engine at the top and are fitted with a cutting bit at the bottom.

井架必须很高，因为它像个巨型滑轮组。我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

Raised, lowered, or positioned equipment, tools, and materials for installation or use using hoist, handline, or block and tackle.

用吊车、手线或滑轮组及辘轳，将要装置或使用的设备、工具，及材料，升高、降低或放好位置。

Unlock the Solo rope clamp to extend the block and tackle system down to the victim,then re-lock the Solo rope clamp

开启夹绳器放松绳索，延长滑轮组的绳圈到受灾者的身上，再锁上夹绳器。3。

This instruction booklet altogether divides five chapters, the emphatically design calculation steel wire and the block and tackle organization, carried the template, the elevating mechanism, move horizontally the warehousing organization as well as storehouse and so on the main system design calculation.

本说明书共分五章，着重设计计算了钢丝绳及滑轮组机构、载车板、升降机构、横移入库机构以及库架等主要系统的设计计算。

This instruction booklet altogether divides five chapters, the emphatically design calculation steel wire and the block and tackle organization, carried the template, the elevating mechanism, move horizontally the warehousing organization as well as storehouse

本说明书共分五章，着重设计计算了钢丝绳及滑轮组机构、载车板、升降机构、横移入库机构以及库架等主要系统的设计计算。

In this paper,the torque of load pulley block of architecture crane is discussed in detail.

本文对建筑起重机载重滑轮组的扭转问题进行了较详细的讨论，并提供了具体的实验数

To Know fixed pulley and movable pulley.

知道定滑轮、动滑轮、滑轮组的作用。

The connector of all kinds of wire ropes has simple structure and reliable performance, especially the multi wheels movable pulley and new structure pulley block provide the condition for oil pumping machine saving energy, and saving energy above 50% as well as decreasing the cost of the oil pumping machine above 50%.

各种钢丝绳连接器结构简单、性能可靠。尤其是多轮动滑轮、新结构滑轮组，为抽油机节能提供了条件，可节能50％以上，降低抽油机造价50％以上。

Pulley group is a kind of lifting accessories.

滑轮组是起重配件的一种。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。