o-

o-是什么意思、o-怎么读

o-英语解释

名词 o-:

1. 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：oxygen, O, atomic number 8
2. the 15th letter of the Roman alphabet同义词：O, letter o
3. the blood group whose red cells carry neither the A nor B antigens同义词：O, type O, group O

o-汉语翻译

【医】 正, 邻(化学)