Half wavelength criterion
[电] 半波长准则
🧩 词语组成解析
half
[hæf]
adj. 一半的，半个的;
n. 半;一半;（啤酒等饮料的）半品脱;（比赛、音乐会等的）半场;
adv. 一半;部份地;
🗣️ 情景例句
Could you slice the tomatoes for me, please?
请帮我把西红柿切成薄片好吗？
Speak well of your friend, of your enemy say nothing.
要赞美朋友，莫提及敌人。
He telephoned the office yesterday morning and yesterday afternoon.
他昨天上午和下午把电话打到了我的