“zinc smelting technologyin ancient China”的概念、定义、翻译、参考文献-科学参考

单词	zinc smelting technologyin ancient China
释义	zinc smelting technologyin ancient China Encyclopedia 工学中国古代炼锌技术释 zinc smelting technologyin ancient China中国古代炼锌技术中国明代万历年间已发明并掌握炼锌技术，当时称锌为“倭铅”。15世纪中国开始用锌铸币。1872年在瑞典哥德堡港附近，打捞出一艘1745年由中国驶达欧洲的沉船，船上装有含锌98.99%的锌锭，说明中国明清时期金属锌的冶炼技术成熟，并可以产品出口。
随便看	electronic records/archives Electronic Records Archives Program of National Archives and Records Administration electronic records audit trail electronic records backup electronic records center electronic records classification electronic records destruction electronic records detection electronic records management electronic records management objectives electronic records management process Electronic Records Management Software Applications Design Criteria Standard electronic records management system electronic records medium management electronic records metadata electronic records metadata management electronic records retention period and disposition schedule electronic records retrieval electronic records security management electronic records storage format electronic records systematic management electronic records transfer and accession electronic registration identification of the motor vehicle electronic reserved books electronic resources importation

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。