这需要一种可知的氢氧化物，并且，其变化效果也需要是可知的。

That would require an understanding of hydroxyl and its variability.

youdao

他坦言，这种方法“对遏制气候变化效果不明显”，但仍主张要现实点，不要理想化了。

He admitted this approach would be "selling the climate short", but urged realism over idealism.

youdao

利用这一原理，在一幅画还没有消失前播放下一幅画，就会给人造成一种流畅的视觉变化效果。

Using this principle, has not disappeared in a picture played before the next picture, it will give result in a smooth visual effect change.

youdao

So this could be summarized as the law of effect, which is a tendency to perform an action's increased if rewarded, weakened if it's not.

这种行为上的变化被称之为效果律，也就是说，行为倾向随奖励而增加，随惩罚而减少。

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