经过50多年的经验为工业生产和市场伺服比例阀，我们的产品的可靠性和准确性传奇。

With over 50 years experience producing servo and proportional valves for the industrial market, our products are legendary for reliability and accuracy.

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比例阀具有优良的静态性能和适当的动态性能，动态性能虽比伺服阀低，但已经可以满足一般工业控制的要求。

Proportional valves excellent static performance and appropriate dynamic performance, dynamic performance is low compared with servo valves, but had to meet general industrial control requirements.

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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。

The measurement of high frequency dynamical flow in dynamical test of electro-hydraulic proportional valve and electro-hydraulic servo valve is very difficult.

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