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liuyangxian

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各位前辈好,小弟有个计算问题常请教下,问题如下:
    对于混合气体,如果知道某一组分的浓度,比如ppm,可以通过公式转化成分压,但若对于一个纯气体,这个压力是怎么算的,是直接用压力计测定还是怎么算的,这两天大脑失灵,有些思维定势,实在搞不清楚了,郁闷,希望大家多发SCI,谢谢
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