“primary document”的概念、定义、翻译、参考文献-科学参考

单词	primary document
释义	primary document Encyclopedia 管理学文献型信息源释 primary document原始文献直接以生产、实验、科研、社会活动等实践经验、工作经验、观察结果、实验结果为依据创作或撰写的，具有一定发明创造或一定新见解的文献。又称一次文献、一级文献。
随便看	powders powders for preparation powder shapes powder sintering powder specific surface area powder spraying machine powder surface modification powder tea processing powder transportation powder warm compactingprocess powder X-ray diffractometer powder X-ray diffractometry powder Xray diffractometry powdery fiber powdery mildew of broadleaf powdery mildew of tobacco powdery mildews Powell Powell, Cecil Frank Powell conjugate direction method Powell curve diagram powellite Powell method power power amplifers

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。