In the way of loading, electro-hydraulicproportionalvalve is used.
在加载方式上，采用电液比例阀。
2
The measurement of high frequency dynamical flow in dynamical test of electro-hydraulicproportionalvalve and electro-hydraulic servo valve is very difficult.
在电液比例阀和电液伺服阀动特性测试中，高频动态流量的测量一直是一个难题。
3
With a example of electro-hydraulicproportional pressure valve, a electro-hydraulicproportionalvalve test system with integrated test and control technology was introduced.