subtractive colour mixing method 相减混色法
physical colour mixing method 物理混色法
Additive colour mixing: The mixing of additive primaries to match a specific colour.
加法混色：混和加色法原色，使它与某一指定颜色相似。
Strictly controlling the material formula, mixing process and extrusion processing process were the main routes to control the colour of PVC extruded product.
认为对材料的配方及配混工艺、挤塑加工工艺进行严格控制，是控制好pvc挤塑制品色泽的主要途径。
Intermediate colour: a colour produced by mixing a primary colour with a secondary colour.
间色：原色和二次色混合所造成的颜色。
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