primary oxygen
英
美
- oxygen n.氧;氧气
- primary adj.首要的;主要的;初级的;初等教育的;根本的;初期的n.第一位;初选;最主要者;要素;原色;初级线圈
- Oxygen bome calorimeter was used to determine calorific value of vinasse.
用氧弹直接测定糖厂废醪液的发热量。
- As the atmosphere slowly became rich in oxygen, life changed to take advantage of oxygen as a source of energy.
随着大气中氧慢慢地增多,生命也就变得喜欢用氧作为自己的能源。