Practice shows that combination marking of terminal marking, terminal and wirecolor coordinationg circuit sketcch in automobile circuirt diagram are of great value to the quick and correct installationand maintenance.

• 实践证明，汽车电路图采用线端标记、端子、电线颜色组合标注法再配合电路简图，对快速、准确安装和维修有着重要的实用价值。