Esms
abbr. electrospray mass spectrometry 电喷雾质谱测定法
🗣️ 情景例句
How come you look so tired?
你怎么看起来这么疲倦？
To study the map
研究地图
Right from the start there was trouble with the Hubble.
从最开始哈勃望远镜就有问题。