This text points out the design mistakes for hydraulic one-way valve in hydraulic pressure system is easy to take place.

作者指出液控单向阀在液压系统设计和运行中容易出现的错误，列出了正确和错误的对比。

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However, the need for oil flow in hydraulic circuit reverse flows can use hydraulic control, opening a one-way valve, so that the flow of oil can flow in both directions.

但在液压回路中需要油流反向流动时又可利用控制油压，打开单向阀，使油流在两个方向都可流动。

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As one of core components in the hydraulic system of construction machine, the performance of multi-way valve decides the level of the whole machine.

作为工程机械液压系统核心元件之一，其性能的好坏，直接决定着整机的技术水平。

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