“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	symmetry-adapted coefficient symmetry adapted linear combination symmetry adapted linear combination, SALC symmetry adapted molecular orbital symmetry-adapted wave function symmetry analysis symmetry and algebra in conformal field theory symmetry and asymmetry symmetry and balance symmetry and conserved current symmetry and conserved quantity symmetry axiom symmetry breaking symmetry breaking technique symmetry-broken symmetry class symmetry classification symmetry condition symmetry element symmetry elements symmetry energy symmetry factor symmetry forbidden reaction symmetry function symmetry group

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。