oxygen

The human brain needs to be without oxygen for only four minutes before permanent damage occurs..人脑缺氧只需4分钟就会造成永久性损伤。

oxygen content,氧含量，血氧含量

dissolved oxygen,溶解氧

dissolved oxygen (DO),溶解氧

dissolved oxygen (do),溶解氧

oxygen consumption,耗氧量，氧消耗

oxygen supply,供氧；氧源

oxygen demand,需氧量

hyperbaric oxygen,高压氧

oxygen saturation,氧饱和；氧饱和度

active oxygen,活性氧

oxygen index,[化]氧指数；示氧值

chemical oxygen demand (cod),化学需氧量

chemical oxygen demand (COD),化学需氧量

chemical oxygen demand,化学需氧量，化学氧需求量

oxygen sensor,氧传感器

pure oxygen,纯氧

oxygen therapy,氧疗法；氧气治疗

oxygen enrichment,富氧

oxygen lance,氧气喷枪

oxygen bar,氧气吧