Tracer diffusion
[化] 示踪原子扩散
🧩 词语组成解析
tracer
['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
Smoking will kill you.
吸烟会害了你。
A shiver of fright ran through them as he dove from the cliff.
他从悬崖跃下时，恐怖的颤栗掠过了全身。
We'll have to buy some more bricks. I don't think these will be enough.
我们需要买更多的砖。我认为这些不够。