oxygen

核心释义

a nonmetallic element that is normally a colorless, odorless, tasteless gas and makes up about 21 percent of the atmosphere

1. 1.

   化学元素(符号O),原子序数8,相对原子质量15.9994。无色无味气体。有时称为元素氧以区别于分子氧

   The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas. Sometimes called elemental oxygen to distinguish it from molecular oxygen.

2. 2.

   一种非金属二价元素,无色无味无臭不可燃的双原子气体,占大气体积的21%,是地壳中最丰富的元素。

   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

3. 3.

   分子氧(O2),室温下为无色无味气体

   Molecular oxygen (O2), a colorless, odorless gas at room temperature.

4. 4.

   氧气与其他气体的混合物,用于帮助患者呼吸

   A mixture of oxygen and other gases, administered to a patient to help them breathe.

5. 5.

   该元素的一个原子

   An atom of this element.

6. 6.

   某物能够繁荣的条件或环境

   A condition or environment in which something can thrive.

化学元素(符号O),原子序数8,相对原子质量15.9994。无色无味气体。有时称为元素氧以区别于分子氧；一种非金属二价元素,无色无味无臭不可燃的双原子气体,占大气体积的21%,是地壳中最丰富的元素。；分子氧(O2),室温下为无色无味气体；氧气与其他气体的混合物,用于帮助患者呼吸；该元素的一个原子