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
，并为进一步的上颌窦
术提供便利。
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，并为进一步的上颌窦术提供便利。
声
：以上例句、词性
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