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应广大读者的要求,及为配合科普宣传活动,从本期起,将分期刊登张德祥同志撰写的科普文章写作系列讲座,欢迎斧正。
At the request of readers and with the promotion of popular science activities, starting from this issue, we will publish a series of lectures on popular science articles by Comrade Zhang Dexiang in installments and welcome him.