The exercises which occur without oxygen are called anaerobic. 運動(dòng)中不需要氧的就是無(wú)氧運動(dòng)。
An animal is dependent on the oxygen which he inhales for his life. 動(dòng)物離不開(kāi)氧氣，為了生存需要吸氧。
The results showed that magnesium hydroxide had good effect for decoloring and suspended substance removal,meanwhile,removal rate of chemical oxygen demand was also quite high. 研究結果表明，氫氧化鎂在印染廢水的處理過(guò)程中，具有良好的脫色效果和懸浮物的去除效果，對化學(xué)需氧量的去除率也相當高。
