目的：总结一种简单易行的“交互反馈式全封闭型持续恒压皮肤扩张灌注器”的临床应用经验。
Objective: To summarize the clinical application experience of a new simple type Continuous and Constant Pressure Skin Expansion Perfusion Apparatus(CCPSEPA).
论述了利用变频器、压力传感器、可编程序控制器以及自制的控制器组成的改进型消防恒压供水控制系统。
This thesis discusses improved water supply control system with constant pressure in the fire fighting that is composed of transducer, pressure sensor, PLC as well as homemade controller.
最后以恒压泵变量机构为实例，对YB - 20ah型柱塞式恒压主量泵变量机构进行了寻优设计，并取得了良好的效果。
Finally, taking the constant pressure pump as example, we make YB-20AH axial piston pump with constant pressure optimized by this method.
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