采用单向阀通道降低液压系统内的液压流体的压力波动，保证了气门的平稳开启。

Pressure fluctuation of the hydraulic system is reduced by one-way valve to protect the valve steadily opening.

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采用单向阀通道降低液压系统内的液压流体的压力波动，保证了气门的平稳开启。

Pressure fluctuation of the hydraulic system is reduced by one-way valve to protect the valve steadily opening.

youdao