Spectral density
[电] 频谱密度
🧩 词语组成解析
spectral
['spɛktrəl]
adj. （似）鬼的;幽灵的;谱的;光谱的;
🗣️ 情景例句
I had a good time today, Robbie.
我今天玩得很开心， Robbie。
I asked him to keep quiet, but he wouldn't.
我请他保持肃静，但是他不肯。
After the party. Ann feels very happy.
聚会之后，安感到非常愉快。