In this paper we deal with some properties of cobordism classes of fiber bundles over the real projective space.
本文研究了底空间为实射影空间时上协边
丛表示的若干性质.
束；丛In this paper we deal with some properties of cobordism classes of fiber bundles over the real projective space.
本文研究了底空间为实射影空间时上协边丛表示的若干性质.
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例椎
内增粗毛细血及条索状
带卡压致腰腿痛的患者临床资料进行回顾性分析。
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