Principal resonant frequency
[电] 主共振频率
🧩 词语组成解析
principal
['prɪnsəpl]
adj. 最重要的;主要的;资本的;本金的;
n. 首长，负责人;主要演员，主角;[法]委托人，当事人;本金;
prin主要的+cip拿，抓，握住+al形容词后缀 → 主要的；首要的
frequency
['frikwənsi]
n. 频繁性;[数][物]频率，次数;频率分布;
fr + equ =equal,even,表示“相等，平均” + enc + y [形容词后缀] → n.屡次；次数；频率
🗣️ 情景例句
No, no, you were right. I was wrong.
确实不容易 说对了。我错了。
This is the schedule for tomorrow.
这是明天的日程安排。
So their entry into this flat was apparently not the burglars' first job that day and they must have been disturbed.
很明显，闯进这套公寓的窃贼那天并不是首次作案，而且他一定受了惊吓。