Hi Michael
> Sorry I'm not understanding this part.

What is the accuracy problem? I'm not seeing any trim problem in the merged sphere.

我所表达的意思是在那些无法用布尔并集合并形成一张完整面只能形成缝合曲面的地方，需要相应的投影曲线用来剪切球体，或使用网格曲面以得到一张完整的面（如图片）

另外，能否改进这些使用布尔并集不能形成曲面只能形成缝合面的位置，使得这些位置能够形成一张完整的曲面

What I mean is that in places where Boolean union cannot be used to form a complete surface and can only form a joined srf, corresponding projection curves are needed to trim the sphere or network to obtain a complete surface (as shown in the picture)
In addition, can we improve the positions where Boolean union cannot form surface but can only form joined srf, so that these positions can form a complete surface