“新闻线人”的概念、定义、翻译、参考文献-科学参考

单词	新闻线人
释义	新闻线人 Encyclopedia 文学新闻线人释 News informer新闻线人不隶属于任何新闻机构，通过向新闻媒体提供新闻线索、新闻半成品或成品以获取物质报酬、精神奖励或解决现实问题的人。
随便看	positive definite potential positive definite product positive definite quadratic form positive definite scalar product positive definite sequence positive definite solution positive definite space positive definite tensor positive definte rational fanction positive deviation positive diffeomorphism positive diffeomorphisms positive differential positive direction positive displacement compressor positive displacement flowmeter positive displacement motor drill positive displacement pump positive displacement sensor positive distinctiveness positive distribution positive divisor positive divisorial ideal positive domain positive drawing

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。