the action or process of commuting a judicial sentence 减刑 ■the conversion of a legal obligation or entitlement into another form, e. g. the replacement of an annuity or series of payments by a single payment 折合偿付;代偿
the process of commutating an electric current 换向;整流
(Mathematics)the property of having a commutative relation (数)交换
语源
late Middle English (in the sense 'exchange, barter', later 'alteration'): from Latin commutatio(n-), from commutare 'exchange, interchange' (see commute). Sense 1 dates from the late 16th cent