对某型全自动液压压砖机的立柱进行接触有限元分析，研究其应力应变情况。分析结果可以对立柱的设计提供参考，有一定的工程通用性和实......

Nevus sebaceus can give rise to multiple neoplasms, some of which have the potential to become malignant. We describe th......