“明永乐“天字”铜手铳”的概念、定义、翻译、参考文献-科学参考

单词	明永乐“天字”铜手铳
释义	明永乐“天字”铜手铳 Encyclopedia 历史学中国古代科技文物释 Bronze Gun with the Inscription“Tianzi”of the Yongle Reign,Ming Dynasty明永乐“天字”铜手铳中国明代永乐十九年（1421）制轻型火铳。
随便看	airborne gravity surveysystem airborne gravity tensor survey airborne high frequency communication airborne highspeed serial bus airborne hoist airborne identification of friend or foe system airborne infrared search and tracking system airborne infrared system airborne instrumentation airborne intelligence surveillance and reconnaissance system airborne laser bathymetry airborne laser bathymetry system airborne laser range finder airborne laser scanner based surveying and mapping technology airborne laser weapon airborne launch airborne magnetical anomaly airborne magnetic compensation airborne magnetic data conversion airborne magnetic data correction airborne magnetic data processing airborne magnetic gradient survey airborne magnetic survey system airborne magnetic total field survey airborne magnetic vector survey

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。