烟道止逆阀，一般在家庭的油烟机排烟道中使用，其中包括油烟机止逆阀、塑料伸缩烟管和烟道止逆阀。
... non-reproducible sample 非反复试样 non-return valve 止逆阀；单向阀 non-reversibility 不中逆性 ...
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... unidirectional flow 单向流 unidirectional value 单向阀；止逆阀 UNIDO［= United Nations Industrial Development Organization］联合国工业发展组织 ...
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夹套止逆阀 clamp sleeve antireverse valve
泵止逆阀 pump check valve
双球止逆阀 dual ball check valve
斜盘式止逆阀 tilting-disk check valve ; disk check valve
角接式升降止逆阀 angle lift check valve
逆止阀 [机] check valve ; [机] non-return valve ; backflow barrier ; nonreternvalve
球形止逆阀 ball valve ; ball non-return valve
旋启式止逆阀 swing check valve
直立升降式止逆阀 vartical lift check valve
入油口加装止逆阀，可避免加工停止时油品垂滴，及不需于下次加工时重复设置油雾量。
GPA-1 oil inlet will be installed with an adverse proof valve to avoid the dripping of oil when the processing stops. Thus there is no need to reset the volume of oil spray for the next process.
检查逆止阀的弹簧。
水泵出口装有逆止阀时，它会立即关闭，防止高压水反向流回水泵。
Export pump with check valve, it will immediately turn off to prevent reverse flow back high-pressure water pump.
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