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
It's really different from what I expected.
这和我想象中的很不一样。
Who has no haste in his business mountains to him seem valleys.
做事不急，履险如夷。
Because the Moon has only an eightieth of the Earth's mass,
因为月球的重量只有地球的1/8，