本文利用整系数多项式与正有理数的对应，将多项式因式分解通过对真分数序列筛选的办法求得因式。
Through the corresponding between integral coefficient polynomial and rational number, this paper obtains factorization from factorization of polynomial by the way of sieve in true fraction series.
根据有理函数及其导数性质，用微分法把有理函数分解为部分分式的和，给出了一次因式所对应的部分分式各系数和二次质因式前两对系数的计算公式。
Raised the differential method of resolving rational function into fractions, and formulas were suggested of the coefficients which correspond to liner factor and quadratic prime factor.
一维空间的不可测集的构造方法基本相同，本文通过将二维空间里的点其对应坐标为有理数的划分方法来确定亲和集，进而给出了一个二维的不可测集。
We know the structure way of the one-dimension no-measurable set, in this paper we first define a amicable set using a mapping, then we give a two-dimension non-measurable set.
有的只做了表面词对词的翻译，而没有理解英文词在英语中所对应的意思；
Some are word-for-word translation, without fully understanding the meaning of the counterpart in English;
有的只做了表面词对词的翻译，而没有理解英文词在英语中所对应的意思；
Some are word-for-word translation, without fully understanding the meaning of the counterpart in English;
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