Harmonic oscillation
[電] 諧振蕩
?? 詞語組成解析
harmonic
[hɑ:'m?nik]
adj. [樂]和聲的，悅耳的;[物]諧波的;和睦的，融洽的;[數]調和的;
n. [物] 諧波;[樂]泛音，和聲;[數]諧函數，調和函數;
n. 振動, 動搖, 變動, 彷徨, 電波\\n[醫] 振動, 擺動
??? 情景例句
Where was the house?
房子在什么地方？
He works best who knows his trade.
內行的人做他的事一定會做得最好。
After taking off, we were flying low over the city and slowly gaining height,
起飛之后，我們在城市上空低低地飛行，然后慢慢爬高。