In the paper, study on displacement law of blank hole for forming cylindraceous with bottom border by numerical simulation technology.

通过数值仿真带底孔的圆筒形件成形底孔的变形规律,在此基础上建立带底孔的圆筒形件成形毛料中心孔变形规律的经验公式。

Objective To summarize the results and experience of supraorbital keyhole approach used for the patients with tumors or aneurysms at superincumbent sellaturcica.

目的总眶上锁孔入路在治疗鞍上区病变中的应用经验。