battery backup的用法和樣例：
例句
- Three-phase UPS systems are used in most large data centers for power conditioning and battery back-up in the event of mains power failure.
當數據中心一旦發(fā)生主電源掉電的時(shí)候，三相不間斷電源系統是應用最廣泛的后備電池和供電條件。 - Switch between working battery and spare battery is fulfilled by using magnetic latching relay.This method effectively lowers the power dissipation.
后備電池的切換采用磁保持繼電器，有效地解決了在線(xiàn)偵測和低功耗的技術(shù)難點(diǎn)。
詞匯搭配
- back up (因積聚而)擁堵...
