1) Non coaxial ellipsoidal surface
非共轴椭球面
2) the area of the 3 axes ellipsoid
三轴椭球面
1.
Some new formulae about the area of the 3 axes ellipsoid are obtained,by which that the area of the 3 axes ellipsoid is symmetric relation to its three semi axes is implied.
得到了三轴椭球面面积的一些新的表示，并推知三轴椭球面的面积关于其三个半轴是对称的；作为特例还得到了两类旋转椭球面的面积；最后提出了当三轴椭球面接近于球面时其面积的一个相当准确的近似表达式。
3) Non-Coaxial ellipsond
离轴椭球面
4) datum-centered ellipsoid
参数共轴椭球
5) coaxial spherical system
共轴球面系
1.
The locations of cardinal points of coaxial spherical system is defined by the conception of three pairs of cardinal points of coaxial spherical system in the air co-medium.
从共轴球面系三对基点的概念出发，给出了前后介质都是空气的薄透镜组和厚透镜的基点位置的简易解法。
6) off-axis aspheric surface
离轴非球面
1.
If an encoder offering accurate angles of the workpiece rotation was installed on the spindle,then the off-axis aspheric surfaces can be machined by employing cylindrical coordinate machining method.
在用来加工轴对称非球面的二轴联动超精密数控机床的工件主轴上安装可以精确给出旋转角度的码盘 ,采用柱坐标加工方式进行离轴非球面的超精密磨削加工。
补充资料：参考椭球(见地球椭球)
参考椭球(见地球椭球)
reference ellipsoid
eankao tU0qlu参考椭球(referenee ellipsoid)见地沐椭球
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