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。

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.

youdao

实现整数倍采样率转换可以采用时不变滤波器，然而实现分数倍采样率转换一般需要采用较复杂的时变滤波器。

For integer ratio conversion, the filters would be time-invariant, but for fractional ratio conversion, the filters would be time-variant whose structure is more complex.

youdao

假如说你的测试结果分数表明自己出于一成不变的友情中。什么事情都由你发号施令而却一点也不承担友情内的工作。

Let's say your quiz score reveals you're in a rigid friendship where you call all the shots and do none of the work.

youdao