Chinese translation for "manual exchange (manual relay system)"

[电学] 人工交换机（人工转报系统）; 人工电话交换机（人工中继系统）、电话通信; 手动交换（手动中继系统）; 手动交换（手动继电器系统）

Similar Words：

"manual element" Chinese translation, "manual element time" Chinese translation, "manual elephantiasis" Chinese translation, "manual engraving" Chinese translation, "manual entry unit" Chinese translation, "manual exchange (manual relay system) telephonic communication" Chinese translation, "manual exchange telephonic communication" Chinese translation, "manual executive" Chinese translation, "manual exercise" Chinese translation, "manual exercises" Chinese translation