Nitrograph
氮气浓度含量测定器
🏥 医学释义
氮气浓度测定仪
🗣️ 情景例句
What's the matter?
到底发生了什么事？
He who would climb the ladder must begin at the bottom.
爬梯必须从底层开始。
Which woman?
哪个女的？