Based on the motion function and characteristic in different modes of water system of air-conditioning, the differential of circulating water volume pump and elevation of pump were analyzed.
根据空调水系统在不同工况下运行的性能与特点，分析冬夏及部分负荷运行时，空调水系统的流量和扬程差异。
Based on the motion function and characteristic in different modes of water system of air-conditioning, the differential of circulatory water volume pump and elevation of pump were analyzed.
根据空调水系统在不同工况下运行的性能与特点，分析冬夏及部分负荷运行时，空调水系统的流量和扬程差异。
This paper calculates, analyses and determines the pressure point of maximum of ouput power and saving-energy efficiency of differential pressure and Limited pressure variable displacement pump.
本文计算、分析、确定了限压式变量系和差压式变量泵输出功率最大值和节能效率最大值的压力点；
By using the characteristics, the combination of two Hooke's joints with cylindrical gear mechanisms forms the driving system of a differential velocity vane pump.
利用这一特性，把两个万向节机构和圆柱齿轮机构组合形成了叶片差速泵的驱动系统。
In this paper, the principle of variable speed pump control hydraulic differential cylinder is designed, and the simulation model of system is built, and the simulation research is carried out.
给出了采用变转速泵控闭式回路控制差动缸的原理，建立了该系统的数学模型，进行了计算机数字仿真研究。
A fully differential charge pump for a frequency synthesizer is proposed.
提出了一种应用于频率综合器的全差分电荷泵电路。
Some special solutions derived from differential equations are discussed in greater detail and thereafter formulas approaching the actual movements of pump valves are given in this paper.
本文对解微分方程法得到的几个特解进行了较为详细的讨论，从而给出了更接近实际情况的泵阀运动今式，提出了一些新看法。
The nonlinearities and some general structures of charge pump are briefly discussed in the paper. An improved differential charge pump based on negative feedback is then presented.
简要讨论了电荷泵中的非线性问题及常用的一些结构，提出了一种改进的基于负反馈的全差分电荷泵结构。
In this article, the factors that affect the max. permissible differential pressure of Roots vacuum pump are discussed. The methods of increasing it are discussed together.
文章分析了影响提高罗茨真空泵最大允许压差因素，提出了解决方法。
The way to ensure water flow of air cooled heat pump chiller was introduced. The application of differential pressure flow switches in air cooled heat pump modular chiller was studied.
分析了模块式风冷热泵冷热水机组水流量保证的方法，研究了压差式流量开关在模块式风冷热泵冷热水机组中的应用。
The internal porting and superior construction enable these pumps to handle continuous duty service applications and pump against high differential pressure.
内部端口和极好的结构能够使这些泵处理连续的负荷检修应用和对抗高压差的泵。
The differential equation of pump station start-up transient is established and derived from discharge balance and moment equation of pump unit.
本文从水量平衡及水泵机组力矩方程出发，建立起水泵从起动到同步的微分方程序。
In order to compensate for the area deviation of differential cylinder and change the output flow of the pump, a program of parallel-type of three-window of variable axial piston pump was proposed.
为了补偿差动缸面积差和改变泵的输出流量，提出采用并联型三配流窗口的变量轴向柱塞泵方案。
A new novel fully-differential charge pump was designed in this paper, differential input and differential output was used in this circuit.
采用差分输入和差分输出方案，设计了一种新型的全差分电荷泵。
A new novel fully-differential charge pump was designed in this paper, differential input and differential output was used in this circuit.
采用差分输入和差分输出方案，设计了一种新型的全差分电荷泵。
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