1.
Singularities of Parallels for Hyperbolic Plane Curves
双曲平面曲线的平行曲线的奇点分类
2.
Indeed, the reader who is slightly familiar with tessellations of the sphere, the Eaclidean plane and the hyperbolic plane, can easily prove the following result.
事实上，稍微熟悉球面、欧几里得平面和双曲平面的分格的读者，都能容易地证明出下面的结果。
3.
Research on the One-Sheet Hyperboloid Cylindrical Cutter with Flat Surface and Straight Edge;
单叶双曲面平板直刃滚筒式切碎器的研究
4.
hyperboloidal gear
双伞齿轮，双曲面齿轮
5.
The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.
作者证实：单叶双曲面和双曲抛物面是直线曲面。
6.
Projectivity of Hyperboloids of One or Two Sheets;
双曲抛物面与单叶双曲面的射影性质
7.
Study on Nonhyperbolic Traveltime-offset of Pure Modes for a Horizontal Interface in the TI Media with an Arbitrary Spatial Orientation;
水平界面任意空间取向TI同类反射非双曲时距研究
8.
Study on the Optimal Lifting Characteristic Curves for Tower Crane of Double-suspension and Horizontal Jib with Variable Cross-section;
双吊点变截面水平臂塔机最佳起重特性曲线的研究及应用
9.
minimum ellipse of a hyperboloid of one sheet
单叶双曲面的最小椭圆
10.
hypoid generator
准双曲面齿轮加工机床
11.
binodal cyclide
双结点四次圆纹曲面
12.
The Completely Equal Curvature of Tubular Surface on Viviani s Curve;
Viviani曲线上管状曲面的全平均曲率
13.
The Calculation on RCS of Double Curved Surface Based on NURBS
基于NURBS建模双曲率曲面RCS计算
14.
A Type of Surfaces Generated by a Planar Curve in R~3;
R~3中一类由平面曲线生成的曲面
15.
Inner point and exterior point of a quadric and its plane of the type of contact plane;
二次曲面的内、外点及切平面型平面
16.
This is a plane curve.
这是一条平面曲线。
17.
The line of intersection, inward concave and shallow area of curved surface are the difficult points in curved surface machining.
曲面交线、面内凹区域及曲面中浅平面的加工是曲面加工中的难点。
18.
If we implicitly represent the plane curves as the level lines of the surface, the evolution of the plane curves will lead to the evolution of the corresponding surface.
如果把平面曲线隐式地表示成曲面的水平线,由这些平面曲线的演化可得到相应的曲面的演化。