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我国汉字电报编码都是由数字组成的,10个数字在传递中的正确与否,直接影响着电报的正确性。为了提高电报通信的质量,降低变字率,我国在电报通信中采用了五单位数字保护电码(惯称“新码”),国产55型电报机就是使用这种电码。在新码中,10个数字的电码组合均为3个传号、2个空号,如遇机线变字增多(或减少)一个传号时就打印出标点符号,报务员即能发现。
Chinese character telegram encoding is composed of numbers, the correct number of 10 figures in the transmission, a direct impact on the correctness of the telegraph. In order to improve the quality of telegraph communications and reduce the variable word rate, China has adopted five digital protection codes (commonly known as “new codes”) in telegraph communications. Domestic 55 telegraph machines use this code. In the new code, the 10-digit code combination is 3 signs, 2 empty numbers, such as case of line increases (or decrease) a mark printed on the punctuation mark, the operator can be found.