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- Normally free oxygen forms O2 molecules. 通常游离的氧只形成O2分子。
- Colleagues joke: the nature of free oxygen bar, good! 同事开玩笑：免费的大自然氧吧，真好！
- It is thanks to the green plants that the air is full of free oxygen . 多亏有了绿色植物，空气中充满了游离氧。
- In the proper form and potency, vitamin C attacks free oxygen radicals. 正常形式和效力的维他命C可以抗氧自由基。
- Enzymes and anti-oxidants protect the body against the harmful effects of these free oxygen radicals. 酶和抗氧化剂,保护人体对这些氧自由基的祸害。
- The arsenate is usually formed in oxidation zones in contact with the atmosphere and free oxygen, and arsenic will precipitate with ferric hydroxide. 在与大气和游离氧接触的氧化带中，常形成砷酸盐，而且砷与氢氧化铁一起沉淀。
- Anaerobe An organism that can live and grow in the absence of free oxygen, i.e. it respires anaerobically (see anaerobic respiration). 厌氧生物：在缺氧条件下生存和生长的有机体，它们进行无氧呼吸(参见anaerobicrespiration)。
- In the Krebs cycle, which requires free oxygen, pyruvate is converted into the 2-carbon actetyl group, which becomes attached to a coenzyme forming acetyl coenzyme A. 卡尔文循环需要充足的氧气，丙酮酸被氧化成2碳的乙酰基，与一个辅酶结合形成2分子的乙酰辅酶A。
- We now know that life began, probably near volcanically active zones, about 3.8 to 3.5 billion years ago, at a time when there was no free oxygen in the atmosphere. 我们现在知道，生命或许在火山活动区附近开始诞生，大约在38到35亿年前，当时大气中没有游离氧。
- GoSMILE is stored in a vacuum-sealed glass ampule.Inside the active ingredients (free oxygen molecules) are kept inactive, conserving the potency of the whitening formula until the ampule is squeezed. 使用方法特色在于独创的单剂量胶囊刷头管，每一颗以真空密封以确保每次使用的完整。
- In virtue of its high cooling rate, perfect sphere degree, low environmental pollution and nearly free oxygen, gas atomization has been practiced widely in modern and national defense industry. 气雾化制粉具有环境污染小、粉末球形度高、氧含量低以及冷却速率大等优点。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- living or active in the absence of free oxygen 在没有氧的环境下生活或者活跃
- Oil Free oxygen Compressor Technical Specification 全无油氧压机技术规范表
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- depending on free oxygen or air. 依靠大量的氧或者空气。
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
- free expansion; free oxygen; a free electron. 自由膨胀；游离氧；自由电子。
- She picked up a new magazine with her free hand. 她用空着的一只手拿起一本新杂志。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
