piriform opening的用法和样例：
例句
- Additionally, the accessory cartilages connect each lateral crus to the piriform aperture.
此外，附件软骨将外侧脚与梨状孔相连。 - A transition zone of bony thickness exists along the frontal processes of the maxilla from the piriform aperture to the radix along the lateral nasal wall.
在上颌骨额突从梨状孔向鼻根沿鼻腔外侧壁走行过程中存在着一骨厚度移行区。
