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1·The radial piston pump can adopt manual-control or electro-hydraulic proportional control to realize the control of constant flow, constant pressure, constant power and load sensitivity etc.

径向柱塞变量泵可以采用手动控制、电液比例控制或负载敏感控制等多种控制方式，实现恒流量、恒压力、恒功率的控制。

2·The common gear pump has such merits as simple structure, low cost, insensitive oil pollution, etc. but it has such demerits as high flow pulsation, unbalanced radial force, strong noise, etc.

普通齿轮泵具有结构简单、成本低、对油液污染不敏感等特点，但具有流量脉动大、径向力不平衡、噪声高等缺点。

3·In the second order, radial basis function neural network was applied to estimate the flow rate of the pump at different rotational speed of the blood pump.

在第二级中，运用径向基网络估计血泵转速连续变化对流量的影响。

4·Calculation of the geometric size of the modified gear, analysis of the flow characteristics of the outer-engaged gear pump, leakage and gap, radial force are discussed in this paper.

分析了影响外啮合直齿轮机油泵容积效率的主要因素 ，对油泵齿谷产生空穴和间隙漏损的机理进行了探讨。