Massenfilter
[机] 四极质谱仪
🗣️ 情景例句
I have learned to use computers and have become familiar with all clerical duties.
我学会使用电脑及熟悉所有文员的工作。
Books,like friends,should be few and well chosen.
书籍如朋友，宜少宜精选。
Hello! I'm Jim Green.
你好！我叫吉姆-格林。