“national wildlife refuges”的概念、定义、翻译、参考文献-科学参考

单词	national wildlife refuges
释义	national wildlife refuges Encyclopedia 农学IUCN保护地分类系统释 national wildlife refuges国家野生动物庇护所为建立美国陆地和水体保护体系，保护候鸟和生态系统的完整性而划定的区域。是美国国家野生动物庇护体系的主要组成部分。
随便看	principal-axis transformation principal band principal base principal bending moment principal block principal branch principal bronchus principal bundle principal bundle connection principal category principal cell principal character principal circle principal class principal coefficient of contraction principal cohomology class principal coincidence curve principal component principal component analysis principal component analysis and singular value decomposition principal component analysis (PCA) principal component analysis, PCA principal component analysis,PCA principal component clustering principal component discrimination

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。