In this paper, using the fundament of relative distance being unchanged from eachdot spherical surface to center, we measured for the window of spherical suthee on a spin-stand of twodimensions.

• 本文利用球面各点到球心的距离相对不变的基本原理，在一个高精度的二维旋转支架上测试球面壳窗的同心度。