Therefore, in order to improve the performance of hydraulic servo valve, it is important to study the mathematical model and distribution of jet flow field.
因此，为了改善由射流前置级驱动的伺服阀的性能，研究伺服阀前置级射流流场的数学模型及分布规律是至关重要的。
Needle valve pressure better than other valves, sealing performance, it is generally used for small flow, high pressure gas or liquid sealing medium, also used in conjunction with the pressure gauge.
针型阀比其他阀门更能受压，密封性能好，所以一般用于较小流量，较高压力的气体或者液体介质的密封，还可与压力表配合使用。
The experimental results show that the new valve functions to well in testing the rate of gas flow that it can be applied to the performance testing of ventilators.
试验结果表明，该调节门是一种较为理想的流量调节装置，完全适用于通风机性能测试。
A rational dynamic system construction of a large flow safety valve was designed on the basis of the specific performance in the paper.
本文以特定的性能要求为准则，拟定了较为合理的大流量安全阀动态系统结构。
The large flow and high response proportional throttle valve is one of the most important content in the high performance Die Casting Machine.
应用于压铸机的大流量高响应节流阀是实现高性能压铸机的一项重要研究内容。
The article discusses some factors which influence the performance of the non-mechanical valve, such as system pressure, air flow-rate, air charging mode and characteristics of ash et al.
通过理论分析，探付了系统压力、风量、充气方式、隔板孔口面积，以及飞灰特性等因素对回料装置工作性能的影响，得出了一些有益的结论。
The experiment of common rail pressure control was carried out and the influence of duty cycle on flow control valve performance was analyzed.
介绍了一种用于柴油机共轨系统的新型泵控制阀，进行了共轨压力控制的试验研究，分析了电磁铁占空比对泵控制阀特性的影响。
The numerical simulation was used to analyze the flow characteristics of cryogenic throttle valves. A test bench was also built up to investigate the performance of the different valve needles.
运用数值模拟方法分析了节流阀的流量特性，并运用实验的手段测量了其流量系数与阀门开度之间的关系。
The numerical simulation was used to analyze the flow characteristics of cryogenic throttle valves. A test bench was also built up to investigate the performance of the different valve needles.
运用数值模拟方法分析了节流阀的流量特性，并运用实验的手段测量了其流量系数与阀门开度之间的关系。
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