posterior sinus的用法和樣例：
例句
- Forobtaining the bets result,the height of maxillary-ethmoid and the height from the up-edgeof maxillary-ethmoid plate to the roof of posterior ethmoid were measured.
鼻前棘至后篩頂后緣的距離及角度，觀(guān)察中鼻甲的走行及附著(zhù)，篩骨水平板的形態(tài)及后篩竇的分度及變異，為臨床手術(shù)提供了一定的解剖學(xué)依據。
