[] a system of marking things with different colours so that you can easily identify them 色标，色码（采用不同颜色表示识别标记）◆Follow the colour code carefully on all electrical wiring. 给所有的电线按照准则小心标上色标。▸ˈcolour-ˌcoded (NAmEspellingcolor-)
adjective
◆Each type of material has a colour-coded label. 每种物料都贴有色标。