Zhongguo gu dai ji xie tu wen ji
About
中国是世界上机械发展最早的国家之一.中国古代在机械方面有许多发明创造,在动力的利用和机械结构的设计上都有自己的特色.许多专用机械的设计和应用,如指南车,地动仪和被中香炉等,均有独到之处.中国古代金属冶铸技术发明时间较早,且技术精湛.
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