1. The uncinate fragment is then grasped and removed as one piece.This should bring into view the opening of the maxillary sinus and facilitate subsequent maxillary sinus meatotomy.
   这时可以看到上颌窦的开口，并为进一步的上颌窦口扩大术提供便利。

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。