1) commutation law,law of commutation
交换律(数)
2) commutative law of set algebra
集代数的交换律
3) commutative law
交换律
1.
The commutative law holds for superposition without exception,but it does not necessarily for accumulation.
叠加必然满足交换律,累加则不一定满足交换律。
2.
The note gives some examples on a set with two binary operations which satisfying, or unsatisfying, respectively, the commutative law, the associative law and the distributive law; and discusses the examples satisfying n -element distributive law but not satisfying (n-1) -element distributive law.
给出一个集合上的两个 (二元 )代数运算分别满足或不满足交换律、结合律和分配律的各类例子 ,同时给出了n元分配律成立而 n-1元分配律不成立的例子 。
4) commutative law of addition
加法交换律
5) data exchange
数据交换
1.
Method for special database integration of oilfield basing on data exchange;
基于数据交换的油田专业数据库集成方法
2.
Research and Design of Data Exchange in Hospital Group s Information System;
医院集团信息系统中数据交换的研究与设计
3.
Research on data exchange in hospital group based on the oracle advan ced replication;
基于ORACLE高级复制技术下的集团化医院数据交换方案的研究
6) exchange parameter
交换参数
1.
Based on the free-election-gas model, a theoretically determined X_a exchange parameter method which is suitable for calculating excited state energies was presented.
根据自由电子气模型，提出了一种用于计算原子激发态能级的Ｘ＿ａ交换参数的理论模型。
补充资料：加法交换律
Image:11733233694257567.jpg
加法交换律
两个数相加，交换加数的位置，和不变。
a+b=b+a
说明：补充资料仅用于学习参考，请勿用于其它任何用途。