According to characteristics of chemical industry process of production, this paper details the pneumatic diaphragm valve, s choice on type, acting mode, specific property of flow and diameter size.
本文就气动薄膜调节阀类型、作用方式、流量特性和口径大小的选择，结合化工生产的特点作了较详细地阐述。
The results indicate that the vortex valve has good property for controlling nozzle mass flow rate.
计算表明，涡流阀有良好的流量调节特性。
The regulating valve is a very important component in the control system of oil pipeline , and its flow property will affect the control level.
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.
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。
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