switchover

劍橋詞典

a change from using or doing one thing to another
轉(zhuǎn)換，轉(zhuǎn)變；徹底改變
The switchover to daylight saving time represents a one percent saving of electricity annually . 使用夏時制后，每年的電力使用量節(jié)省了百分之一。 返回 switchover