“美国国家公园系统”的概念、定义、翻译、参考文献-科学参考

单词	美国国家公园系统
释义	美国国家公园系统 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	apparent value apparent velocity apparent vertex apparent viscosity apparent viscosity of melt apparent visual magnitude apparent volume of distribution apparent zenith distance apparition AP-PCR APP Design appeal to emotion appeal to rationality appeal to the higher authorities appearance and non-appearance appearance and texture representation appearance and thing-in-itself appearance height appearance in the day appearance point appearance potential appearance potential spectroscopy appearance potential spectroscopy, APS appearance potential spectrum appearance potential spectrum (APS)

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。