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This paper we introduce a new hydraulic pump and motor bedstand ,which is mainly used for testing hydraulic pump and motor.

本文介绍了一种新型液压泵、液压马达实验台，主要针对工程机械行业使用的油泵油马达入行试验。

The fine screen installation shall incorporate a radius edge at the pump bellmouth for smooth entry into the pump inlet.

好的荧屏安装将合并一在泵 bellmouth 的半径边缘为平滑的进入进入泵插入物之内。

In chapter 2, the intensity and phase formulae of five photorefractive processes in intermediate regime are derived including the analytic expressions of codirectional parallel-or cross-polarization two-wave mixing in the depleted pump condition and the analytic expressions of contradirectional parallel-or cross-polarization two-wave mixing and degenerate four-wave mixing in the undepleted pump approximation.

给出了本文的结构和取得的主要结果。第二章推出了五种光折变过程的中间段强度与相位公式。既同向平行、交叉极化双光束耦合的大信号解析公式，异向平行、交叉极化双光束耦合以及简并四波混频的小信号解析公式。

C pump rotor can be used to transfer high viscosity material, so also known as colloidal pump.

c 转子泵可用于输送粘度很高的物质，所以又称胶体泵。

C pump rotor can be used to transfer hellogh viscosity material, so also known as colloidal pump.

c 转子泵可用于运送粘度很高的事物，以是又称胶体泵。

C pump rotor can be used to transfer high viscosity material, so also known as colloidal pump.

c 转子泵可用于运送粘度很高的物质，所以又称胶体泵。

When water circular pump is served as a fore pump, it is especially suitable for cases where there is lots of condensable gas.

水环泵作为前级泵时，特别适合抽除大量可凝性气体的场合。

First, a system for providing liquid refrigerant subcooling (10), subsequent to the subcooling accomplished by the primary condenser of an air conditioner, refrigeration or heat pump system, by means of evaporative cooling utilizing the condenser water of said air conditioner, refrigeration or heat pump system and/or some other water supply to wet the surface of the subcool heat exchanger and then passing the cold, dry building exhaust air (13) required for good indoor air quality across the wetted surface of the subcool heat exchanger or by using building exhaust air only to conductively subcool.

首先，一个提供液态制冷剂过冷的系统(10)，在由空调、制冷或热泵系统的主冷凝器实施完成过冷之后，通过蒸发冷却，利用所述空调、制冷或热泵系统的冷凝器水和/或一些其它水源来润湿过冷热交换器表面，然后使为达良好质量室内空气所需的建筑物干冷排气(13)通过穿过过冷热交换器的润湿表面，或只利用建筑物排气以传导方式过冷。

Mathematical model of the cavity of three-tipped cycloidal pump was established, and the structure and characteristics of the novel three-tipped cycloidal pump were analyzed.

论述了三尖摆线的形成及其参数方程，并付其特性进行了研究，建立了三尖摆线泵型腔的数学模型，分析了新型三尖摆线泵的结构和特性。

Based on the tooth profile curve equation of inner rotors in cycloidal pump , the formula for displacement calculation of the pump are derived.

根据摆线泵内转子的齿廓曲线方程，推导出了摆线泵的排量计算公式。

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％。