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类
表示的若干性质.
束；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类表示的若干性质.
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
素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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