详细解释:n. 氧
【化】 氧O-2
【医】 氧(8号元素)
词型变化：
副词:oxygenically形容词:oxygenic简写符号:O英语解释：
名词 oxygen:
a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust同义词：O, atomic number 8