frontal sinus造句

1、Osteal stenosis at frontal sinus orifice in 21 cases.
额窦自然开口狭窄者21侧（9·4%）。

2、Objective To explore the clinical characteristic and surgery method for frontal sinus osteoma.
目的探讨额窦骨瘤的临床特点和手术方法。

3、We describe a frontal sinus stent which is cheap, easily produced and effective.
我们描述一种有效的额窦斯滕特固定模，该模价格便宜，易于制造。

4、Two kinds of buffalos' frontal sinus are the thin-shell constitution as an arch bridge.
两种类型水牛额窦内部都呈拱桥式薄壳结构。