“five metals”的概念、定义、翻译、参考文献-科学参考

单词	five metals
释义	five metals Encyclopedia 理学〔中国古代有色金属冶炼技术〕释 five metals五金五种古代主要的金属，通常认为是金、银、铜、铁、锡或金、银、铜、铅、铁，泛指一切金属。
随便看	lower half-plane lower half-space lower heating value lower heat value coal lower hemisphere lower-he-sea point lower homology lower hybrid frequency lower hybrid oscillation lower hybrid wave lower index lowering lowering mapping lowering of index lowering of order lowering operator lower integral lower Lebesgue sum lower limb lower limb prosthesis lower limit lower limit event lower limit function lower limit of an integral lower limit of a sequence

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。