Vacuum relay
[电] 真空继电器
🧩 词语组成解析
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
Nothing will stay down when I eat.
我吃下去的东西全吐出来了。
The clerk helped me find what I wanted.
职员帮助我发现我想要的东西。
As a reasonable guess, they might, on an average, be 100 light years away.
据合理推算，外星人离我们平均距离也有100光年之远