pyriform造句

1、Objective To explore the regularity invading adjacent tissue of pyriform sinus carcinoma.
目的探讨梨状窝癌侵犯邻近组织的规律。

2、Main crop figs are pyriform with variable necks.
主要作物是可变的脖子无花果梨形。

3、Objective: To improve the diagnosis and treatment of pyriform sinus fistula.
目的：提高梨状窝瘘的诊治水平。