科学时代-面向大众传播科学知识、科学方法、科学精神和科学思想的科学普及平台。

科学时代收录了3405121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。

热门查询：

nitrogen balance	nitrogen base	nitrogen-based atmosphere	nitrogen base， nitrogenous base	nitrogen budgets
nitrogen bulb	Nitrogen carrier	nitrogen charge	nitrogen circulation	nitrogen column
nitrogen compound	Nitrogen compounds	nitrogen compound semiconductor device	nitrogen condensate	nitrogen-containing air
nitrogen-containing aluminum	nitrogen-containing atmosphere	nitrogen-containing base	nitrogen-containing basic	nitrogen-containing carboxyl
nitrogen-containing carboxylic	nitrogen-containing condensed ring	nitrogen-containing cyclic	nitrogen-containing environment	nitrogen containing heterocyclic
nitrogen-containing heterocyclic group	nitrogen-containing liner	nitrogen-containing monocyclic	nitrogen-containing organic compound	nitrogen-containing reactive
nitrogen-containing reducing gas	nitrogen-containing substance	nitrogen content	nitrogen content silicon oxynitride	nitrogen conversion factor
nitrogen cooling	nitrogen cooling electric generator	nitrogen current	nitrogen cushion	nitrogen cycle
Nitrogen cycle	nitrogen deposition	nitrogen depth profile	nitrogen determination	nitrogen dioxide
nitrogen dioxide gas	nitrogen dioxide gas injury	nitrogen dioxide liquid	nitrogen distribution	nitrogen doped
nitrogen efficiency	nitrogen element	nitrogen enhanced NBTI	nitrogen environment	nitrogeneous matter
nitrogen equilibrium	nitrogen equivalent	nitrogen excretion	nitrogen family	nitrogen filled lamp