在分析恒压防滴阀系统的工作方式和工作原理的基础上，研究了恒压防滴阀系统恒压的机理，并建立数学模型进行定量讨论和分析。

This paper analyzed the working manner and principle of unvarying pressure anti-dripping valve, studied unvarying pressure mechanism, established mathematic model for quantitative analysis.

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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.

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