。 麻醉(Anesthesia)=An esthesia An没有 esthesia知觉 Boston,Massachusetts,on October 16, 1846,Villiam T.G.Morton乙瞇• 麻醉（Anesthesia）= An esthesia • An 没有 • esthesia 知觉 Boston, Massachusetts, on October 16, 1846, William T. G. Morton 乙醚