Half-value layer(hvl)
[化] 半值层; 半值厚度
🧩 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
I'm looking for a sports car.
我想买一辆跑车。
Each bird loves to hear himself sing.
鸟儿都爱听自己唱歌。
We stay at home on Sundays. We play games on Tuesdays and Thursdays.
周日我们呆在家里。周二、周四玩游戏。