telegraph switching system 中文意思是什麼
telegraph switching system
解釋
電報交換系統-
Every field has its own special computer network, however they still use the switching network of programming control which is provided by the post telephone and telegraph system. the cost of the telephone is a large part in the spending of every department. instructing the switching network to realize the telephone communication needs much of equipment charges, lines charges, protection charges, project charges and time
雖然各行業都有自己的專用計算機網路，但是各行業仍利用郵電系統提供的程式控制交換電話網路通信，需支付大量的電話費，佔用了各部門的很大一部分開銷；建立程式控制交換電話網路實現電話通信需要大量的設備費、線路費、維護費和工程費等費用，並且需要一定的施工工期。
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