To produce a multicoloured map a separate printing plate is required for each colour of ink.
为了制作一幅多色地图，需要制作适用于各色印刷油墨的印刷板。
2
He-Ne laser is used to reconstruct the light intensity distribution of the three colour informations and record a colour hologram on a holographic plate.
用单色激光同时再现出记录的三种颜色信息的光强分布，并将它们记录在同一张全息片上作成彩色全息图。
3
You must leave the stone in light for hours or heat the diamond on a hot plate for it to shift to the olive green colour .