T8 has stronger light, LED has less strong, but the performance is different.
T8具有更强的光,LED不强,但性能是不同的。
While he always plays the same role, he says that "every performance is different".
尽管他总是扮演同样的角色,但是他说,“每场表演都是不同的”。
The power chuck has many kinds of structure patterns, its performance is different to some extent too.
液压动力卡盘有多种结构型式,其性能也有所不同。
And so instead of defining efficiency the way you've got it written there, I'm going to define what's called something different for a refrigerator which is called the coefficient of performance.
现在我们不用,效率的那个定义,我给出一个,有关制冷机的,新的定义,叫做制冷系数。
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