泵

Study on the rubber stator compoundof one step injection screw drilling tool;2. he paper presents a test method to research the dynamic property of the rubber stator for screw pump,compares the result of static and dynamic tests and selects the formulation according to the tests.

提出研究螺杆泵定子橡胶动态性能的试验方法，对静态试验及动态试验结果进行对比，并应用其试验对配方进行筛选，结果表明，橡胶压缩温升试验能较好地表征螺杆泵定子橡胶的动态性能，为橡胶定子的研究提供了较为可靠的依据，并在实际应用中得以证实。

Single screw pump flow and pump speed is proportional to, which has a good regulatory variables

单螺杆泵流量与泵的转速成正比，因而具有良好的变量调节性

The theories established in this paper give directions to the current design and produce of the three screw pump; and also give solutions of the problems during usage.

本文的基础理论研究对当前的螺杆泵的设计生产都有很好的指导作用，对当前三螺杆泵使用中出现的问题有很好的解决效果。

Screw pump features: the loss of small screw pump, good economic performance.

螺杆泵特点为：螺杆泵损失小，经济性能好。

Against the screw on the different wells specific measures to improve system efficiency, making Erlian screw oil wells on the management level to a higher level.

针对该情况对不同的螺杆泵井提出了具体提高系统效率的措施，使得二连油田螺杆泵井的管理水平上了一个台阶。

Main production gear pumps, screw pump, pump, high viscosity rotor pump.

主营生产齿轮泵、螺杆泵、离心泵、高粘度转子泵。

Mounted coupling: first in the motor shaft mounted on the head ring, mounted on coupling half, and then in the shaft coupling client and loaded block chute and Plum wrench tightening bolts (lifting shaft 3 ~ 5 mm and to provide mechanical seal prestressed); and then loaded up the other half on the coupling screw Hexagon screw must be tightened.

装联轴器：先在电机轴头上装上挡圈，装上一半联轴器，再在泵轴端和联轴器槽内装上挡块并用梅花扳手拧紧螺栓（吊起泵轴3~5毫米并提供机械密封预应力）；再装上另一半联轴器拧上内六角螺钉必须拧紧。

Mounted coupling: first in the motor shaft fitted with ring head, fitted with coupling half, and then end in the shaft and the coupling block bed fitted with Plum wrench tightening bolts (lifting shaft 3 ~ 5 mm and pre-stressed mechanical seal); and then loaded onto the other half of the coupling screw Hexagon screw must be tightened.

装联轴器：先在电机轴头上装上挡圈，装上一半联轴器，再在泵轴端和联轴器槽内装上挡块并用梅花扳手拧紧螺栓（吊起泵轴3~5毫米并提供机械密封预应力）；再装上另一半联轴器拧上内六角螺钉必须拧紧。

The company range of products and services include: self-and agent all kinds of domestic and foreign oil import and export of machinery and equipment Products Services, including: drilling machinery (drill, drill pipe, square pipe, drill collar, screw drill), oil production machinery (pumping, ground-driven screw pump, electric submersible screw pump, pump, sucker rods, valves, various types of downhole tools), pipe (tubing, casing, pipe, glass pipe, composite pipe ), oil field chemicals (such as drilling fluids, completion fluids, workover fluids, anti-foam agent, emulsifier, oil microorganisms, scale, etc.) and oil technology development, transfer and services.

公司主要产品和服务范围包括：自营和代理国内外各类石油机械设备产品的进出口服务，主要包括：钻井机械（钻机、钻杆、方钻杆、钻铤、螺杆钻具）、采油机械（抽油机、地面驱动螺杆泵、电潜螺杆泵、抽油泵、抽油杆、阀门、各类井下工具）、管材（油管、套管、输送管、玻璃钢管、复合管）、油田化学品（如钻井液、完井液、修井液、防泡剂、乳化剂、采油微生物、阻垢剂等）以及石油技术的开发、转让和服务等。

Equipment life is extended by preventing machinery jams and saw blade de-alignment, as well as lockup causing equipment stress.

使用软启动器可防止机械卡夹、锯条错位及导致设备应力的闭锁因而延长设备寿命泵失速或卡泵时软启动器可防止设备损坏。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。