“氮”的概念、定义、翻译、参考文献-科学参考

单词	氮
释义	氮 Encyclopedia 理学氮释 nitrogen氮化学元素，元素符号N，原子序数7，原子量14.007，属周期系ⅤA族。 Astronomy 全称：nitrogen。缩写：N氮 Chemistry ＞无机化学＞无机化学基本概念与无机化合物＞释义 nitrogen氮
随便看	urban road traffic sign urban road traffic surveillance system urban road tunnel urban-rural coordination urban-rural development urban-rural development transformation urban-rural differences urban-rural ecosystem urban-rural fringe urban-rural governance urban-rural gradient urban-rural income disparity urban-rural integrated household survey urban-rural integration urban-rural integration development urban-rural planning and research center urban-rural regional coordination urban-rural relations urban-rural relationship urban-rural space control urban-rural territorial system urbanscape urban school Urban Sculpture urban search & rescue

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。