“张乃凤”的概念、定义、翻译、参考文献-科学参考

单词	张乃凤
释义	张乃凤 Encyclopedia 农学张乃凤释 Zhang Naifeng张乃凤（1904-03-31～2007-02-22）中国土壤肥料学家。中国化肥田间试验的先导和全国化肥试验网的组织者。
随便看	variable coefficient model variable coil variable collision variable color polarizing variable compensation variable component variable compression ratio variable condenser variable control chart variable coordinate variable cross-section charge Variable Crystal Filter variable cycle engine variable cycle engine turbine variable DB white dwarfs variable density liquid method variable-density sound track variable design variable-directions method variable displacement variable domain variable endpoint variable-free expression variable frequency AC electrical power generating system variable-frequency Motor

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。