commutative
adj. 交换的，交替的；（一般）代替的
例句
Hence, SUM is commutative to partition.
因而，SUM就是可互换分区。
Rules can also be used for commutative and noncommutative algebra.
规则可以用于交换和非交换代数。
Commutative writes also simplify the process of bringing up new partitions.
可交换的写操作简化了新数据块的创建流程。
