“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	Actors Create Role actor's lines Actors' Miscellany actors of a troupe singing classical or requested passages in streets actors of labor relations Actors’Union Actor-teacher act psychology ACT-R AC traction substation Act regarding library services ACTS acts against the administration of public security acts disturbing public order acts impairing public security acts impeding social administration acts infringing upon rights of the personal acts infringing upon rights of the property Acts of Supremacy Acts of the Apostles acts of unlawful interference actticotomy Act to Promote Mexican Investment and Regulate Foreign Investment actual actual aperture

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。