经验上的

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

通过数值仿真研究了带底孔圆筒形件成形底孔变形规律,在上建立了带底孔圆筒形件成形毛料中心孔变形规律经验公式。

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

结眶上锁孔入路在治疗鞍上区病变中应用结果与经验。