“black Americans”的概念、定义、翻译、参考文献-科学参考

单词	black Americans
释义	black Americans 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	coal-oil mixture fuel coal-oil mixture fuel; COM fuel coal petrography sample coal petrology coal plough coal preparation coal preparation system of circulating fluidized bed boiler coal pre-prospecting coal production coal prospecting coal pulverized system coal pulverize maintenance coal pyrolysis coal quality analysis coal quality evaluation coal quality physical testing coal rank coal reaction coal remote sensing geological survey coal reservoin resilience coal reservoir coal reservoir gas saturation coal reservoir permeability coal reservoir pressure coal resistance to heat

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。