n.代償；減刑；交換；經(jīng)常來往
Commutation is distinct from reprieve. 減刑不同于緩刑。
He appealed for (a) commutation of the death sentence to life imprisonment. 他已上訴請(qǐng)求將死刑減為無期徒刑。
Commutation failures are one of the common faults in HVDC systems. 換相失敗是直流系統(tǒng)的最常見故障之一。
