1、

This paper proposed a mathematics model for the simulation of ground-source heat pump system based on distributed parameters, including compressor, plate-type heat exchanger, thermostatic expansion valve, water and refrigerating agent thermal condition performance and performance of state matter, and so on.

本文用稳态分布参数法建立了土壤源热泵装置各部件的数学模型,包括压缩机、板式换热器、热力膨胀阀、水和制冷剂的热性和物性参数的程序化等。

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3、

Influence of temperature on main performance parameters of hydraulic pump

温度对液压泵主要性能参数的影响

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4、

Aiming at the characteristics of structure and performance of pump body in high pressure gear pump, squeezing casting was employed to manufacture the pump body, and the optimized die structure parameters and processing parameters were provided.

针对高压齿轮泵前后泵体结构、性能要求等特点,研究了挤压铸造生产前后泵体的工艺过程,给出了最佳的模具结构参数和工艺参数。

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5、

An empirical formula of diameter d4 of abrasive waterjet nozzle to pump pressure P and uniform outlet velocity V_4 was established based on the design of structure parameters and performance test.

本文对射流喷头进行了结构参数设计和性能实验,得出了动力泵压力P与磨料水射流出口处均匀速度V4和磨料喷嘴直径d4的经验公式。

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6、

Moreover, in order to improve the EDWA performance, the parameters are optimized such as pump power and waveguide length.

并且为了全面发挥掺铒玻璃波导放大器的性能,需要抽运功率、波导长度等各个参量配合起来。

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7、

Pump performance for the two main parameters of displacement and pressure.

泥浆泵性能的两个主要参数为排量和压力.

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8、

in kind by the real machine pump tests, performance parameters meet the design requirements.

实物泵经真机试验后, 性能参数达到设计要求.

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