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

[电学] 人工交换机（人工转报系统），电话通讯

Similar Words：

"manual element time" Chinese translation, "manual elephantiasis" Chinese translation, "manual engraving" Chinese translation, "manual entry unit" Chinese translation, "manual exchange (manual relay system)" Chinese translation, "manual exchange telephonic communication" Chinese translation, "manual executive" Chinese translation, "manual exercise" Chinese translation, "manual exercises" Chinese translation, "manual extraction of milk from lactating breast" Chinese translation