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液压系统中的单向阀包括两种:普通单向阀和液控单向阀。 普通单向阀是使油液只能沿一个方向流动,不允许反向流动,而液控单向阀是允许油液正反方向流动。
There are two types of check valves in hydraulic system: normal one-way valve and pilot check valve. Ordinary check valve is to make the oil flow in one direction only, not allowed to reverse flow, and check valve is to allow liquid oil to flow in the positive and negative directions.