“Commonwealth of Puerto Rico”的概念、定义、翻译、参考文献-科学参考

单词	Commonwealth of Puerto Rico
释义	Commonwealth of Puerto Rico Encyclopedia 历史学波多黎各自由联邦释 Commonwealth of Puerto Rico波多黎各自由联邦加勒比岛屿，美国海外属地。波多黎各位于加勒比海大安的列斯群岛东端，包括波多黎各岛和附近的莫纳岛、韦克斯岛和库莱布拉岛。面积8897平方千米。人口347万（2015），其中白人占73%，混血种人23%，黑人4%。居民多信奉天主教。官方语言为西班牙语，通用英语。首府圣胡安。
随便看	directed cycle directed design directed diffusion directed distance directed downward set directed ear directed edge directed-edge sequence directed energy deposition directed evolution directed family directed family of points directed family of sets directed flow directed forgetting directed graph directed graph; digraph directed graphics directed group directed infinity Directed Infrared Countermeasures direct editing directed limit directed line directed line-segment

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。