Epxma
[化] 电子探针X射线微量分析
🗣️ 情景例句
I consider him my best friend.
我将他视为我最好的朋友。
A man is as old as he feels.
老不老，自己晓。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。