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
Are you listed?
在电话号码本上能找到你吗？
She's meeting me at the Libe at seven.
她约好七点跟我在图书馆见面。
After buying a new chain I was faced with the insurmountable task of putting the confusing jigsaw puzzle together again.
我买来一根新链条后，面临的就是如何把这些令人眼花缭乱的拼板重新组装起来。