Phase undervoltage relay
[电] 相位欠压电驿
🧩 词语组成解析
[电] 欠压
relay
[rɪ'lɛi]
n. 接替人员，替班;传递;接力赛;继电器;
vt. 转播，传达;用驿马递送，使接替;分程传递;
🗣️ 情景例句
You are a walking dictionary.
你是活字典。
It is a sad house where the hen crows louder than the cock.
母鸡司晨家不兴。
and of dark narrow streets full of petrol fumes and toxic gases,
和阴暗狭窄的街道组成