Ancient Chinese art, in nakedness often said, if by unionizing the calligraphy ink.

中国古代艺术论里常有虚实之分，若言书画，此虚实多指墨迹。

Cloth color used the shortest wavelengths of light purple, solid is red and blue harmony unionizing the intersection.

布料颜色采用波长最短的可见光波紫色，实乃红蓝相融虚实相交。

Combined with the actual situation and the comparative studies, the core problem of white and white unionizing is void-solid combination of theory.

结合虚实与留白的对比研究，得出虚实与留白的核心问题是虚实相生的理论。