详细解释:a. 交替的, 交换的
【法】 交换的, 代替的, 互相的
词型变化：
名词:commutativity英语解释：
形容词 commutative:
(of a binary operation) independent of order; as in e.g. "a x b = b x a"详细解释：
com.mu.ta.tive
adj.（形容词）Relating to, involving, or characterized by substitution, interchange, or exchange.交换的；代替的：有关、包含或特征是替代、交替、交换的Independent of order. Used of a logical or mathematical operation that combines objects or sets of objects two at a time. Ifa × b = b × a , the operation indicated by × is commutative. 交换的：次序的独立。用于一次联接两个或两组对象的逻辑或数学操作。如果a × b = b × a ，由×表示的操作是可交换的
【引伸】
commu.tativ.ity