整个系统包括恒温循环水回路、稳压罐、电磁阀、流量调节阀、电子秤和控制单元等组成部分。
It is composed of the circulating water loop in constant temperature, surge tank, solenoid valves, flow regulating valve, electronic scale and control units.
分析了循环水泵出口液控蝶阀控制回路存在的问题，提出了改进的措施。
Problems about hydraulic control butterfly-valve are analyzed, and some irrational design and some improvement method are also put forward.
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