片语
cross-boundary spread of commutable diseases传染病跨界传播
exchangeable可交换的;可兑换的;可替换的
swappable[计] 可交换的
residually commutable group剩余交换群
commutable numberc数
Non commutable disease非传染性疾病
non commutable不可互换的
commutable matrices可交换矩阵
anti-commutable matrix space to A与A反可换的矩阵空间
commutable bill可抵偿的票据