Gcms
[医]Gas Chromatography-mass Spectrometer
🗣️ 情景例句
You're welcome.
不用谢
The old man fumbled with the key in the dark.
老人在黑暗中摸索着寻找钥匙。
The most economical age to capture an elephant for training is between fifteen and twenty years,
捕捉15至20岁之间年龄的大象进行驯练最为经济。