F-f cavity preselector
[电] 射频空腔预选器
🧩 词语组成解析
[计] 预选器, 预选程序
🗣️ 情景例句
I always take good care of my body.
我总是很关注身体健康。
The ox is never woe,till he to the harrow go.
挂耙去耕地，牛才知辛苦。
I immediately regretted answering in the way I did, but I said, 'I enjoy cleaning windows at night.'
“我喜欢在夜里擦窗子。”