Ringle
金属环振荡器；金属环圈
🗣️ 情景例句
He had an emergency.
他有紧急事情。
Fear is often greater than the danger.
杞人忧天。
Mainframe computers were very large indeed, often occupying whole air-conditioned rooms,
计算机主机确实很大，常常占据了装有空调的多间房间，