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6 天
修正西南山地冶金术传入年代 川大冶金考古团队取得突破性进展 ...
“中原冶金传统的特别之处在于对冶金术的革新和创造。中原地区在三代时期所创造的复合范技术和竖炉技术,直接促使了春秋战国之际生铁冶炼技术的发明。这一点我们领先了西方近两千年的时间,也是中华文明特殊性的一个重要的技术证据。”付杰说。
13 天
翻译:毛泽东《清平乐·六盘山》
不到长城非好汉, 屈指行程二万。 六盘山上高峰, 红旗漫卷西风。 Our gaze follows the south-flying wild geese till they dwindle out of sight. We are no ...
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Iran coal mine blast
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No govt. shutdown for now
PM Modi visits US
Economic speech this week
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