Directily excited antenna
[电] 直接激发天线
🧩 词语组成解析
excited
[ik'saitid]
adj. 兴奋的，激动的;活跃的;激发的;受刺激的;
v. 使兴奋（ excite的过去式和过去分词）;
antenna
[æn'tɛnə]
n. [生] 触角，触须;感觉，直觉;天线;
an 等加在同辅音字母的词根前，表示\"一再\"等加强意 + t + enn =year,表示“年，一年” + a → n.天线
🗣️ 情景例句
What do you do for a living, Mr. Stewart?
你是做哪一行的 Stewart先生？
May I have a customs declaration form, please?
请给一份海关申报表好吗？
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，