Periodic antenna
[電] 周期天線
?? 詞語組成解析
periodic
[,p?r?'ɑd?k]
adj. 周期的;定期的;回歸的;間歇的，時而發生的;
antenna
[?n't?n?]
n. [生] 觸角，觸須;感覺，直覺;天線;
an 等加在同輔音字母的詞根前，表示\"一再\"等加強意 + t + enn =year,表示“年，一年” + a → n.天線
??? 情景例句
He came up with a bright idea.
他想到一個妙主意。
None so deaf as those that won't hear.
置若罔聞。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人類自夸的“征服”了空氣的發動機。