结果表明,早在南唐时期,我国铁币冶铸技术已达到一定水平,且在宋代有所改进。
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.
匈牙利和塞尔维亚和中国签署了建设从贝尔格莱德到布达佩斯高铁的协议,此外,匈牙利还签署了以人民币计价的债券。
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.
介绍一种可以制作纪念币以及娱乐用币材料的软质铁素体不锈钢。
A soft ferritic stainless steel was introduced which could be manufactured for the commemorative and entertaining coin.
公司专业从事铁制螺栓、螺帽等紧固件及铁铸件的热浸锌、达克罗及电镀锌加工,年实现产值在一亿人民币以上。
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.
公司专业从事铁制螺栓、螺帽等紧固件及铁铸件的热浸锌、达克罗及电镀锌加工,年实现产值在一亿人民币以上。
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.
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