Terms containing elliptic coordinates

Subject	English	Chinese
tech.	elliptic coordinate system	椭圆坐标系
space	elliptic coordinates	椭圆坐标
tech.	elliptic coordinates	椭球螺坐标
tech.	elliptic cylinder coordinates	椭圆柱坐标
tech.	elliptic cylindric coordinates	椭圆柱坐标