同化：指一个音具有了邻音的一部分或者全部特征这一过程。包括鼻化、齿化和腭化。
Assimilation: a process by which one sound takes on some or all the characteristics of a neighbouring sound. It includes nasalization, dentalization and velarization.
结论：经鼻内窥镜翼腭窝手术可以获得相对安全的范围，圆孔可以作为手术中重要的标志结构。
Conclusion: Safe scope could be acquired in endoscopic transnasal surgery in pterygopalatine fossa and foramen rotundum could be thought as an important landmark.
方法以离体蟾蜍上腭黏膜为模型，研究1%麻黄素、复方麻黄素、ATP及含ATP的复方麻黄素滴鼻制剂对纤毛运动的影响。
Methods Using toad palate as model in vitro, the effect on ciliary movement was studied for 1% ephedrine, compound ephedrine, ATP, and compound ephedrine containing ATP.
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