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've got extra time on my hands.
我有过多空闲时间。
A gloved cat catches no mice.
戴手套的猫抓不到老鼠。
She felt inhere handbag for the piece of paper on which her father had written down al the details of the journey and gave it to the porter.
她从钱包里摸出一张纸条，那上面有她父亲对这次旅行详细说明，她把这张纸条交给了搬运工。