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意思解释:(Fill oxygen)用氧注入或与氧结合;用氧处理或补给。
一种气体元素。符号O,原子序8,原子量15.9994,原子价2,对空气的比重1.1。无色,无臭,无味,能助燃烧。在冶金工业、化学工业中用途很广,也是动植物呼吸所必需的气体。…
Element of a kind of gas. Symbolic O, atomic foreword 8, atomic weight 15.9994, quantivalence 2, to airy proportion 1.1. Colorless, without smelly, insipidity, can aid combustion. Use in metallurgical industry, chemical industry road is very wide, also be the gas that uses a plant to breathe place to need. ...
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