目的:利用锥形束CT(CBCT)了解鼻腭管的正常解剖形态并进行分类。方法:选取华西口腔医院放射科289例CBCT影像资料,对鼻腭管解剖形态......

The construction of Three Gorges Project （TGP） is characterized by large construction scale, high construction intensity a......