采用两个调速阀的串联可以实现两种不同慢速的换接，但换速冲击大。 - 查题网

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成人高等教育 / 汽车机械基础

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采用两个调速阀的串联可以实现两种不同慢速的换接，但换速冲击大。

A、正确
B、错误

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汽车机械基础

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