为什么当消防员进入火灾之前要携带供氧器？
Why do firemen need to carry oxygen supply when they go into the fire?
医用输氧器是小型的供氧装置，主要用于个人保健、医院、高原补氧和井下供氧等。
Medical oxygen respirator is small instrument for oxygen supply and mainly used for personal health care, hospital, plateau oxygen supplement and undermine oxygen supply, etc.
一旦反应器供氧不足，菌体碳、氮源代谢能力减弱，不利于青霉素合成。
Oxygen in short supply makes metabolism of carbon and nitrogen weak, which is unfavourable to synthesis of penicillin.
在环己酮生产过程中，影响环己酮产品质量的因素很多，其中最为显著的是供入氧化反应器的贫氧控制。
There are a many factors influencing the quality of the cyclohexanone product during the cyclohexanone production, the most significant one is the control of lean oxygen feeding the oxidation reactor.
从2002年起，本公司开始从事太阳能产品的研究及生产，有太阳能灭虫器系列、太阳能驱鼠器和驱鸟器、太阳能移动电源、太阳能发电系统、太阳能抽水喷灌系统、太阳能供氧系统等！
Since 2002, we begins the development and production of solar products, such as Solar Insect Killer, Solar Mouse & Bird Repeller, Solar Power Supply System, Solar Sprinking & Irrigation System, etc.
从2002年起，本公司开始从事太阳能产品的研究及生产，有太阳能灭虫器系列、太阳能驱鼠器和驱鸟器、太阳能移动电源、太阳能发电系统、太阳能抽水喷灌系统、太阳能供氧系统等！
Since 2002, we begins the development and production of solar products, such as Solar Insect Killer, Solar Mouse & Bird Repeller, Solar Power Supply System, Solar Sprinking & Irrigation System, etc.
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