| 释义 |
中继线zhōngjìxiàn接在各个电话交换台之间的导线。例如电话局各个分局之间的连接线、电话局和使用单位总机的连接线以及长途电话局和市内电话局之间的连接线。{relay line; junction line; line connecting switchboards, such as any of the connection lines between various branches of a telephone exchange service, between the telephone exchange service and its client units, and between the long distance telephone exchange and the local telephone exchange} |