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一种新型的电报计费开据机(DY1-77型),已在北京市的一些邮电局开始使用。使用该机时,只要按几下电键,机器面板上的数码管就立即显示出电报的字数和应收电报费的款额。数码管还可以将机内电子数字钟所记载的发报时
A new telegraph billing machine (DY1-77) has been used in some post offices in Beijing. When using the machine, just press the button a few times, the digital panel on the machine panel immediately shows the number of telegraphic words and telegraphic expenses. Digital tube can also be the machine electronic digital clock recorded when the report