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本刊1995年第3期刊出《一种新型的同线电话选通器》后,收到一些读者来信,现就该电话选通器的特点及使用方法由原作者答复如下。
The magazine published the first three in 1995, “a new type of telephone line with the same phone,” received a number of readers letter, now on the features and use of the telephone selector by the original author replied as follows.