A-c directional overcurrent relay
[电] 交流方向性超流断电器
🧩 词语组成解析
directional
[[di'rekʃənəl]]
a. 方向的
[化] 过载电流
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
Is that one of the things Susan and Harry are bringing?
那是不是属于Susan和Harry要带的？
Yes, I got dressed and had breakfast.
是,我穿好衣服了并且吃了早餐。
Will you be free tomorrow evening?
你明晚有空吗？