Half-thickness
[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
and work begins at eight in the morning for me.
早晨八点我就得开始工作。
Score twice before you cut once.
三思而行。
If we could stay as vigorous as we are at twelve,
假如我们能保持12岁时的旺盛生命力，