曲面族

admissible surface

容许曲面

theological college 神学院 | admissible surface 容许曲面 | aliphatic ester 脂族酯

characteristic of a developable surface

可展曲面的特征性

特征数;示性数 characteristic number | 可展曲面的特征性 characteristic of a developable surface | 一族曲面的特征线 characteristic of a family of surface

envelope of a family of curves

曲线族的包络

envelope curve 包络曲线 | envelope of a family of curves 曲线族的包络 | envelope of a family of surfaces 曲面族的包络

family of solutions

解族

family of sets 集族 | family of solutions 解族 | family of surfaces 曲面族

family of surfaces

曲面族

family of sets 集族 | family of solutions 解族 | family of surfaces 曲面族

triply orthogonal family of surfaces

三重正交曲面族

12500,"triply isothermal conjugate system of surfaces","三重等温共轭曲面系... | 12501,"triply orthogonal family of surfaces","三重正交曲面族" | 12502,"triply orthogonal system of surfaces","三重正交曲面...

envelope of a family of surfaces

曲面族的包络

envelope of a family of curves 曲线族的包络 | envelope of a family of surfaces 曲面族的包络 | epicycloid 外摆线,圆外旋轮线

triply orthogonal family (system) of surfaces

三重正交曲面族

三重等温共轭曲面系 triply isothermal conjugate system of surface | 三重正交曲面族 triply orthogonal family (system) of surfaces | 三周期函数 triply periodic function

triply isothermal conjugate system of surface

三重等温共轭曲面系

三连通曲线 triply connected curve | 三重等温共轭曲面系 triply isothermal conjugate system of surface | 三重正交曲面族 triply orthogonal family (system) of surfaces

triply orthogonal system of surfaces

三重正交曲面系

12501,"triply orthogonal family of surfaces","三重正交曲面族" | 12502,"triply orthogonal system of surfaces","三重正交曲面系" | 12503,"triply periodic function","三周期函数"

colonial rule：殖民统治

colonial protectorate;殖民保护地;殖民被保护国;; | colonial rule;殖民统治;; | Colonial Secretary;辅政司;;

matrimonial agency：婚姻介绍所

21 deep love 深沉的爱情 | 22 matrimonial agency 婚姻介绍所 | 23 lover,sweetheart 情人