“Black Codes”的概念、定义、翻译、参考文献-科学参考

单词	Black Codes
释义	Black Codes Encyclopedia 历史学美国历史释 Black Codes《黑人法典》美国内战后南部各州为继续奴役黑人而制定的各种法规的总称。
随便看	navigation satellite navigation satellite operation control navigation signal anti-jamming navigation signal measuring and processing navigation signal multipath mitigation navigation sonar Navigation Standard navigation star navigation state perception navigation station navigation station positioning navigation structure Navigation Technology Satellite navigation terminal navigation terminal equipment navigation tunnel navigation uploading receiver navigation warning navigation waterway navigator Navoi Na vsiakogo mudretsa dovol’no prostoty navy navy cloth Navy Navigation Satellite System

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。