The action of any anesthetics within the body is due to two factors: its physical property of solubility in fats and water and its chemical characteristic of combining with nerve tissue.

• 任何麻醉剂在体内的作用都取决于两个因素：一是物理因素，即其在油脂和水中的溶解度；二是化学因素，即其与神经组织结合的能力。