Those that are aligned perpendicular to the plane are called axial hydrogens .

与平面垂直定向的氢叫做直立氢。

Ethanol is such a small , simple molecule-just two carbon atoms , six hydrogens , and a spare oxygen-that it pours directly out of the stomach and small intestine into the bloodstream .

乙醇分子实在是小得可以一个乙醇分子仅由两个碳原子，六个氢原子外加一个氧原子组成这使得它可以自由的从胃袋或肠道向血管移动。