有效行程区是调节阀流量调节特性所研究的区域。
The effective movement region is the research region of the flow adjusting characteristics of regulator.
针对调节阀的流量特性、压降、闪蒸、气蚀及噪音等问题介绍了调节阀在选型和应用中的要点。
This paper introduced control valve selection and its application based on the theory of flow characteristic, pressure drop, flashing, cavitation and noise.
调节阀是输油管道控制系统的重要组成部分，其流量特性对控制质量影响很大。
The regulating valve is a very important component in the control system of oil pipeline , and its flow property will affect the control level.
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