除了一种基本色，还有另外两种与基本色的互补色相邻的两种颜色构成。
In addition to the base color, it USES the two colors adjacent to its complement.
通过这两系列基本色的混合，可以产生任何一种颜色。
These are each produced by mixing the light from two primary colours.
在图例设计中、岩溶水常按以上两种类型采用两种基本色调，并按颜色深浅区别其富水程度。
In designing the legend, karst water is assigned two or three basic colours and the different shades of colour are used to distinguish the degree of water storage capacity.
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