“Lewis and Clark Expedition”的概念、定义、翻译、参考文献-科学参考

单词	Lewis and Clark Expedition
释义	Lewis and Clark Expedition Encyclopedia 历史学美国历史释 Lewis and Clark Expedition刘易斯和克拉克探险美国T.杰斐逊政府（1801～1809）时期组织的对北美大陆西部的探险活动。
随便看	projective hierarchy projective hierarchy theorem projective homology group projective hyperplane projective ideal projective identification projective immersion projective incidence group projective infinitesimal structure projective invariance projective invariant projective isomorphism projective-iterative projective k-set projective k variety projective lattice projective length projective limit projective limit group projective limits projective limit space projective line projective linear group projective line element projective line geometry

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。