查询词典 pump rod

The pump efficiency of 32% rod pumped well s in Erlian Oilfield is lower than 30%, and increasing production centralizer is introduced to solve this problem.

二连油田有32%的抽油机井泵效低于30%，为此有针对性地引进了增抽扶正器配套工艺。

The preparing process is described as follows:(1) the raw materials are dispersed in the solvent;(2) the solution is arranged between two electrodes;(3) alternating current with a voltage of 5 V-100V and a frequency of 10Hz-1000Hz is applied to both ends of the electrodes for 5minutes to one hour;(4) the product obtained after being washed with deionized water and pump filtrated or after centrifugal treatment is dried by being heated to 40 centigrade to 100 centigrade to get the nanometer grain, wherein the raw materials in the first step are micrometer materials or nanometer materials such as sulphide, selenide, telluride and oxide; without special requirement on shape or appearance, the materials can be in the shape of a rod, a fork, a star, a block or a sphere; the solvent in the first step can be water, ethanol, acetone, benzene or tetra chloromethane.

步骤为：1将原料分散于溶剂中；2使制成的溶液处于两电极之间；3在电极两端的加交流电，电压为5V-100V，频率为10Hz-1000Hz，时间为5min-1h；将产物用去离子水洗涤、抽滤，或进行离心处理后；4将所得到产物加热到40～100℃进行干燥，得到纳米颗粒。步骤1中原料为硫化物、硒化物、碲化物、氧化物等微米或纳米材料，其形貌不限，可以为棒状、枝状、星状、块状、球形等多种形状。步骤1中的溶剂可以为水、乙醇、丙酮、苯或四氯化碳。

Hydraulic cylinder piston rod connects gate ,the operation principle of manual hydraulic knife gate valve is that through manually handle , manual- driven hydraulic pump makes hydraulic fluid in the upper and lower chamber of hydraulic cylinder to drive gate opened and closed to achieve valve's open and closed.

手动液压刀闸阀由是由液压缸活塞杆连接阀门闸板，其操作原理手动驱动液压泵手柄把液压油通过手动换向阀压入液压缸的上下腔来带动活塞杆做上下动作，从而带动闸板的启闭来达到阀门开关作用。

Optimizing the Pumping Parameters(Length of Stroke,Pumping Speed, Plunger diameter and Pump depth) of Sucker-rod Pumping System is a mixed discrete optimization Problem.

优选有杆泵抽油井的抽油参数：冲程、冲次、泵径和下泵深度是一个混合离散变量的优化问题。

The flam e hot spraying can outstandingly increases service life of plunger in sucker rod pump.

在抽油 泵柱塞表面实施喷涂工艺，可显著地提高其使用寿命。

The load force model about the rod pump is carefully analysesed.

给出了有杆泵负载—位移特性的数学分析，系统的详细数学模型中充分考虑了多种非线性因素的影响。

The fuel adjustment mechanism is applied in the gear rod fuel injection pump.

齿轮齿杆式喷油泵的油量调节机构得到了越来越广泛的应用。

Polyphenylene Sulfide as a heat-resistant, corrosion resistance, high rigidity material, and instrumentation can be the production of gears, axle sleeve; in the electrical industry, for the skeleton, bearing, terminal, etc.; in the chemical equipment, shell can be made pump, impeller, valves, etc.; in the automotive industry, for axial transverse rod bushing, fuel system components.

聚苯硫醚作为耐热、耐蚀、高刚性材料，在仪器仪表中，可制作齿轮、轴套；在电器工业中，作骨架、支座、接线柱等；在化工设备方面，可制作泵壳、叶轮、阀门等；在汽车工业，作轴向横拉杆衬套、燃料油系统部件等。

The fracture of piston rod of new hydrogen compression pump is studied by metallography and electron probe in this paper.

用金相显微镜和电子探针对新氢压缩机活塞杆断口进行了分析。

With the development of the oilfield, deviated wells, sidetracking wells and horizontal wells have more and more important function,whereas the particularity of casing programme limited the landing depth of sucker rod pump ,and affected the producibility of oil well seriously.

随着油田的开发，斜井、侧钻井、水平井等非直井在油田开发中起到越来越重要的作用，但由于井身结构的特殊性，限制了有杆泵的下入深度，严重影响了油井的生产能力，同时抽油井杆管偏磨，已成为非直井降低产量，增加作业成本、增加杆管成本的主要矛盾。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。