| 释义 |
〔parasympathetic〕parasympathetic activity; parasympathetic agents.副交感神经系统活动;副交感剂〔biotin〕A colorless crystalline vitamin, C10H 16N 2O 3S, of the vitamin B complex, essential for the activity of many enzyme systems and found in large quantities in liver, egg yolk, milk, and yeast. 生物素:无色结晶维生素,C10H 16N 2O 3S,属复合维生素B,为多种酶系统活动必不可少的物质,并在肝、蛋黄、牛奶和酵母中发现大量该物质 |