In this paper we deal with some properties of cobordism classes of fiber bundles over the real projective space.

本文研究了底空射影空时上协边类纤维丛表示的若干性质.

Clinical data of 14 patients suffered from backleg pain caused by entrapment of thickened capillary and cordal fiber bundle inside canalis spinalis were analyzed, retrospectively.

对14椎管内增粗毛细血管及条索状纤维素带卡压致的患者临床资料进行回顾性分析。