中段为泪囊鼻腔造孔术需要凿通的部位。

The middle portion is the surgical area of the nasolacrimal fistulation.

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目的探讨鼻内镜下鼻腔泪囊造孔术与传统鼻腔泪囊吻合术的优劣。

Objective To discuss which is good or bad of dacryocystorhinostomy with endoscope and traditional dacryocystorhinostomy.

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在…上或…内造埋头孔。

To make a countersink on or in.

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在…上或…内造埋头孔。

To make a countersink on or in.

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