“The United States of America National Park System”的概念、定义、翻译、参考文献-科学参考

单词	The United States of America National Park System
释义	The United States of America National Park System Encyclopedia 工学〔外国国家公园〕释 The United States of America National Park System美国国家公园系统美国政府为保存自然环境而设置的地区的总和。
随便看	rate of chemical reaction rate of clock rate of closeness rate of collection possession rate of collection utilization rate of commodity turnover for books rate of contraception rate of convergence rate of decay rate of decrease rate of deformation rate of diffusion rate of discovery rate of divorce rate of earthquake occurrence rate of entropy production rate of escape rate of exchange rate of flow rate of formation rate of gain rate of generation of information rate of grassland turnover rate of growth rate of incidence

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。