• 结果表明,早南唐时期,我国冶铸技术达到一定水平,宋代有所改进。

    PAT and other techniques have been used to study the composition micro structure and defects of the iron coins minted in the Southern Tang Dynasty and the Northern and Southern Song Dynasties.

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  • 匈牙利塞尔维亚中国签署建设贝尔格莱德布达佩斯协议,此外,匈牙利签署了人民计价的债券

    Hungary and Serbia have signed a deal with China to build a high-speed railway from Belgrade to Budapest. Hungary has also issued bonds in the Chinese currency.

    youdao

  • 介绍一种可以制作纪念以及娱乐用材料素体不锈钢

    A soft ferritic stainless steel was introduced which could be manufactured for the commemorative and entertaining coin.

    youdao

  • 公司专业从事螺栓螺帽紧固件铸件热浸达克罗及电镀锌加工,年实现产值在一亿人民以上

    Professional companies engaged in metal bolts, nuts and other fasteners to the hot-dip zinc and iron castings, and Dacromet Zinc processingachieving more than 100 million yuan in output value.

    youdao

  • 公司专业从事螺栓螺帽紧固件铸件热浸达克罗及电镀锌加工,年实现产值在一亿人民以上

    Professional companies engaged in metal bolts, nuts and other fasteners to the hot-dip zinc and iron castings, and Dacromet Zinc processingachieving more than 100 million yuan in output value.

    youdao

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