Supercontrol tube
[电] 超控制管
🧩 词语组成解析
🗣️ 情景例句
If you had to describe the book in one sentence,
假如要你用一句话来描述这本书，
Yes, this is Shen speaking.
是的，我姓沈。
some drifting and slow, others jerky and rapid.
这些活动有的飘忽而缓慢，有的急剧而快速。