col·our code
noun/ˈkʌlə kəʊd/
/ˈkʌlər kəʊd/
(US English color code)
- a system of marking things with different colours so that you can easily identify them
色标（法），色码（法）（用不同颜色作为识别标记） - 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。
- Follow the colour code carefully on all electrical wiring.