本文介绍同步回转式液压放大器的结构和工作原理，以及它在台架试验中所测得的主要性能数据。
This paper introduces the structure and operation principle of the synchronous rotary hydraulic amplifier as well as the main data of performance measured during the test on platform.
阀门在试验过程中可翻转90度工作，特别适用气密封性能试验。
Valve can turn 90 degree working in testing course, especial suitable for property experiments of gas seal.
通过系统地研究电磁控制阀的工作性能，总结出各种理论和试验规律。
By researching systematically the working performances of the solenoid-controlled valve, some theories and experimental rules are summarized.
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