摘要
证明了与单叶双曲面上3条互不重合的u族直母线均共面的直线所构成的曲面正好是原单叶双曲面.
It is proved that the surface organized by all the straight lines which are coplanar with three u - family rectilinear generators of an uniparted hyperboloid, which are not coincident with each other, is exactly the primal uniparted hyperboloid.
出处
《吉首大学学报（自然科学版）》
CAS
2005年第4期59-61,共3页
Journal of Jishou University(Natural Sciences Edition)
关键词
单叶双曲面
u族直母线
共面
uniparted hyperboloid
u - family rectilinear generators
coplane
