“national air defense”概念、定义、翻译-科学时代

单词	national air defense
释义	军事词汇手册 national air defense 国土防空
随便看	running out running out system running postman running price running query running repair running repair running sand running schedule running script running speed running speed running stock running stock running stock running story running story running time running time running time running time running title running title running title running torque

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。