- reactive valve
- 反作用: reaction
- 阀: established house or power g ...
- 作用阀: a lication valve; application valve; operating valve
- 反作用: retroaction; bucking; counterreflect; reaction; counteract; counteraction; counterpressure; back action; reacting 上层建筑对经济基础的反作用 the reaction of the superstructure on the economic base
- 反作用，反作用力: reaction
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