“美国黑人”的概念、定义、翻译、参考文献-科学参考

单词	美国黑人
释义	美国黑人 Encyclopedia 法学〔北美各民族〕释 black Americans美国黑人历史上被欧洲殖民者劫运到美利坚合众国的非洲黑人奴隶的后裔。又称非洲裔美国人。
随便看	single foramen single frequency single-frequency single frequency network single-frequency positioning single-frequency sounder single-gene disorder, monogenic disorder single gimbal control moment gyro single group design single head type of organization single-heterolaser single heterostructure single-hole charge single-hole sonic logging meter single-hook winding single-hump mapping single-image photogrammetry single inclusion problem single index element single-index model single index regression model single-index regression model single inheritance single-injection pressurization single in-line memory module

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。