A stroke can disrupt the supply of oxygen to the brain. 中風可導致大腦供氧中斷。
The kinetics of nitrification biofilm in upflow and pure oxygen has been studied. 對上向流直接供氧生物膜硝化動力學進行了試驗和討論。
MOEA applied to medical health care,is smaller?sized,more easily operated,safer and more economical than other sources of oxygen supply. 膜法富氧用於醫療保健比其它氧源體積小，操作簡單，安全和經濟。
Recent research progress on the propylene epoxidation catalysts which use molecular oxygen or hydrogen peroxide as oxidants is reviewed. 評述了以分子氧和雙氧水為氧源的丙烯環氧化催化劑體系的最新研究進展。
