差动式柱塞泵 differential plunger pump
差动式吸气泵 differential getter pump
差动式泵
Differential pump
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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。
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.
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