pumping main

The main contents of the paper include next parts, as following: (1) Explored the whole program of gearless traction oil pumping unit.

本文主要内容包括以下几点：（1）探究了无齿轮曳引式抽油机的整体方案。

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Construction of manual digging concrete pile in dormitory building works of the grade one pumping station located in the main canal transferring of Yellow River diversion project

引黄总干一级泵站宿舍楼人工挖孔灌注桩施工

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We main manufacture: dredger , sand pumping vessel , sand filter , transporter, sand selecting equipment, conveyer belt, etc.

公司主要生产: 挖沙船、抽沙船 、 筛沙机 、 运输船 、 沙石精选设备 、 输送带、磁选机 、 等矿山机械设备.

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And we use this method to calculate the electron beam's spectrum after transmission through anode foil of diode, HIBACHI and main foil, which is used as a pumping source of laser.

利用这种方法对相对论性电子束泵浦强激光时，具有一定能谱分布的电子束穿透阳极膜，撑条（HIBACHI）及主膜后的能谱变化进行了模拟计算。

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The main causes is analysed for looseness of the threaded connection on pumping unit crank pin and the corresponding preventive measures are proposed.

分析抽油机曲柄销螺纹联接在使用中发生松动的主要原因，并提出相应的预防措施；

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The result shows that the advection is the main factor to affect the suspended sediment transport, and the tidal pumping effect also plays an important role.

结果表明，悬沙净输移以平流作用占优，潮泵效应项在悬沙输移中也相当重要；

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Results show that the advection and the tidal pumping effect are the main dynamic decomposition for the flux of suspended sediment.

结果表明，连云港近岸海域悬沙通量中主要动力分项是平流作用和潮泵效应。

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The lifetime of the electrical submersible pumping unit is the main factor affecting the overhaul period of electrical pumping unit.

对电泵井故障模式的调查和统计表明，潜油电泵机组使用寿命是影响电泵井检修周期的主要因素。

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The thickening generally happens in the left ventricle, the heart's main pumping chamber.

增厚的部位一般为左心室, 也就是心脏为全身供血的主要腔室.

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The main mechanisms of hyporheic exchange include pumping exchange and turnover exchange.

潜流交换机理主要包括泵吸交换和冲淤交换.

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