Servodyne
伺服系统的动力传动(装置)
🗣️ 情景例句
It's still raining. I want to play tennis.
仍然在下雨。我想打网球。
What sort of medicine do you take?
你吃的是什么药？
The contract will be sent to you by air mail for your signature.
合同会航邮给你们签字。