- constant flow control valve
- 恒: permanent; lasting
- 流量: rate of flow; flow; runoff; ...
- 控制阀: control valve; actuated valv ...
- 流量控制阀: flow control ale; flow control valve (f.c.v); flow control valves; flow controls; flow metering valve; flowrate control valve; rate-of-flow control valve
- 流量控控制阀: flow control valve
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