压缩气体经冷却凝结成液态。The compressed gas is cooled and condenses into a liquid.空气,无论是气态的或是液态的,都是一种流体.Air whether in the gaseous or liquid state is a fluid.物质以三种形态存在: 固态 、 液态和气态.Matter exists in three states: solid, liquid and gas...
Objective : To investigate the reasons of the second cholesteatoma of postoperative tympanoplasty.目的: 探讨单纯鼓室成形术后发生胆脂瘤的原因并提出预防措施.Objective To study the cause and treatment of external acoustic meatus cholesteatoma.目的探讨外耳道...