“non-protein nitrogen”的概念、定义、翻译、参考文献-科学参考

单词	non-protein nitrogen
释义	non-protein nitrogen Encyclopedia 农学非蛋白氮释 non-protein nitrogen; NPN非蛋白质氮粗蛋白质中除了真蛋白质外，其他游离氨基酸、肽、酰胺、生物碱、有机碱、氨、尿素、尿酸和硝酸盐等含氮化合物的统称。
随便看	product projection product quality audit product quality certification product quality certification system product quality guaranty insurance product quality law Product Quality Law of the People's Republic of China product quality supervision Product recall product recall insurance product recall system Product Research and Development product rule product sales rate product sample book product's angular distribution product scheme Product Semantics product semantics product's energy distribution product seriation product series product service product-service community product service system

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。