gasoline starting fraction 汽油起动馏分
starting fraction 初馏分
starting fuel fraction 燃油初始馏分
And the point is, now we're going to start, since the mole fraction in the gas phase that we're starting from is the same number as this was.
我们从这一点开始，因为气态的摩尔分数不变，我们从之前相同的数字开始。
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