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
That has nothing to do with what I'm talking about.
那跟我说的事情没有关系。
How much is a one-way ticket?
单程车票多少钱一张？
What's wrong with it?
怎么了？