You take the y component, take the derivative with respect to x, take the x component, differentiate with respect to y, you should get the same answer. And that is important to know.
对y分量，关于x求导，对x分量，关于y求导，应该得到相同结果，这个知识点很重要。
And then, we differentiate our answer with respect to y, and we compare with that to get the complete answer.
然后对答案求出关于y的偏导，和N比较一下，就能得出完整答案了。
I mean, on the other hand, you could start with integrating with respect to y and then differentiate and match with respect to x.
另一方面，可以从对y积分开始,然后关于x求导，进行匹配。
"National laws of general application" means laws that apply to society as a whole and which do not differentiate in respect of persons with disabilities.
“全国普遍适用的法律”是指法律，适用于整个社会并没有区分在尊重残疾人。
"National laws of general application" means laws that apply to society as a whole and which do not differentiate in respect of persons with disabilities.
“全国普遍适用的法律”是指法律，适用于整个社会并没有区分在尊重残疾人。
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