1947年上海初识 1947年我在南京紫金山天文台工作时,德培致函紫台询问有关天文事宜,因而开始通信,从此成为志同道合的朋友,至今已超过半个世纪。当年8月我受中国天文学会的委派去上海参加七科学团体联合年会并展览天文书刊,在黄浦江畔和德培初次会面,畅谈天文,从此共同走上天文普及之路。 First acquaintance in Shanghai in 1947 When I was working in Nanjing Purple Mountain Observatory in 1947, De Pei sent a letter to Purple Taiwan asking about astronomy matters and started to communicate. She has been a like-minded friend since more than half a century. In August of that year, I was commissioned by the Chinese Astronomical Society to go to Shanghai to attend the joint annual meeting of seven science groups and to exhibit astronomy books and journals. During the first meeting at the banks of the Huangpu River and Depei, I talked about astronomy and started to take astronomical popularization together.