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请下载后查看，本文暂不支持在线获取查看简介。丹青难写是忠诚——记中国工程院院士孙承纬!本刊记者@晓剑请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile. Danqing hard to write is loyal - the Chinese Academy of Engineering Sun Weibei! Correspondents @ Xiao Jian Please download after viewing, this article does not support online access to view profile.