1) pseudospherical surface
伪球形曲面
2) pseudo-spherical submanifold
伪球面子流形
1.
Decomposing the position vectors of a submanifold into the tangential and normal components,the present paper studies the conditions under which a compact space-like submanifold of pseudo-Euclidean space is pseudo-spherical submanifold.
将子流形的位置向量分解成水平分量和垂直分量,运用活动标架法研究伪欧氏空间的伪球面子流形。
3) spherical protruding curved surface
球形凸曲面
1.
By way of studying the machining route of spherical protruding curved surface part and milling the course,the numerical control machining program applied spherical protruding curved surface that has commonality and applicability and simpleness have been gone out by using the macro programming.
通过研究球形凸曲面零件的加工路径及铣削过程,利用FANUC系统提供的宏程序功能编制出了具有通用性、适用性且应用简单的球形凸曲面的数控加工程序。
4) spherical surface curve triangle
球面曲边三角形
5) spherical surface curve quadrangle
球面曲边四边形
6) hyperbolic sphere supporting
双曲面球形支座
补充资料：伪球面
伪球面
pseudo-sphere
伪球面[冲践日。一刻犯比;nce哪c加pa」 曳物线(七刁d幻x)(x一“一切曲“，y=seChu)绕其渐近线(y=0，见图)旋转所构成的常负曲率曲面. 创卜 在半测地坐标(semi~g以)此ic姗11tina比)中线素有形式: d扩=d。2十氓h，竺d。，，“=常数 a(直线。二O是一测地线);而在等温坐标(is。山e爪以】coordinates)中有形式:、，2_。:兰兰止卫止，，_。， y-每个常负曲率曲面可局部嵌人于伪球面.伪球面的内蕴几何学局部地与双曲几何学一致(见Bdt.田11解释(价h以而泊忱rPre以ion)).
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条