KCA 7001 302063
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1 Image

Kong Chang'an and Chang Youming

孔長安與常友明
KCA 7002 302065
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1 Image

Kong Chang'an, Gao Minglu, Fan Di'an, and others with the New Measurement Group

孔長安,高名潞,范迪安等人與新刻度小組
KCA 7004 302069
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1 Image

Photo by Kong Chang'an

孔長安拍攝的照片
KCA 7005 302071
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1 Image

Photo by Kong Chang'an

孔長安拍攝的照片
KCA 7003A
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2 Images

Photos by Kong Chang'an

孔長安拍攝的照片