目的为上颌窦内窥镜开窗术提供相关断层解剖学参数.Objective To provide sectional anatomy mutuality parameter for maxillary sinus endoscopic fenestration.小孔由外科内耳开窗术在骨上切割出的开口.The opening in a bone made by surgical fenestration.方法采用潜式扩大开窗术治疗单纯性腰椎管狭窄...
新建的长江大桥现已通车.The new bridge across the Yangtse River is now opened to traffic.长江注入东海.The Changjiang River empties into the East China Sea.雄伟的长江滚滚东流.The waters of the Changjiang River rolled to the east on majestically....