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[数]交换环；可换环
1、commutative meaning───交换意义
2、ring ring───戒指
3、ring───n.戒指；环状物；圆形；圆形竞技场（或表演场）；炉口；（非法的）团伙；铃声；（鸟的）腿环；行星光环；环形护城工事；Gang门；围成一圈的人（或物）；感觉；n.(Ring)（美、挪、德、爱、英、波、丹）林（人名）；v.打电话；发出铃声；回响；充满；嗡嗡作响；（通过按铃）要求服务；听上去（有某种印象）；报（时）；包围；圈起来
4、commutative subtraction───交换减法
5、commutative def───交换定义
6、commutative associative───交换结合
7、commutative property───交换性
8、commutative law───[数]交换律
9、commutative algebra───[数]交换代数；可对易代数
1、The number of polynomial function over a finite commutative ring.───有限交换环上的多项式函数的个数问题。
2、On commutative ring with the identity, the definition of affine Lie algebras was given by applying the means of generator and defining relation.───在有单位元的交换环上，可应用生成元和定义关系的方法给出仿型李代数的定义。
3、Derivations and Automorphisms of a Matrix Algebra over a Commutative Ring───可换环上一类矩阵代数的导子和自同构
4、The notion of the space of semiorderings on a commutative ring is introduced.───引入交换环上半序空间的概念。
5、As the main results, it gives a Positivstellensatz, a Nullstellensatz and a Nichtnegativstellensatz for matrices over a commutative ring.───作为本文的主要结果，关于交换环上矩阵的正点定理，零点定理和非负点定理被建立。
6、Some basic results on eigenvalues of matrices over a commutative ring are established.───针对交换环上的矩阵，建立了一些有关特征值的基本结论。
7、A commutative ring with unity having no proper divisors of zero, that is, where the product of nonzero elements cannot be zero.───一个单位元素都不是零的真约数，即，非零元素的乘积不为零的交换环。
8、A commutative ring is a prime ring if and only if it is an integral domain.───含单位元的交换环是素环的充要条件是它是整环。
9、Compatibility of an ordering of higher level with a valuation pair for a commutative ring───交换环上高层序与赋值对的相容性
1、Because bridegroom is too nervous, forgot the order of commutative ring.
2、The aim of this paper is to given an explicit description of the derivations and automorphisms of a matrix algebra over a commutative ring with identity.
3、Xu Jinzhong proved module over commutative ring is injective if and only if it is flat.
4、The number of polynomial function over a finite commutative ring.