“item difficulty”的概念、定义、翻译、参考文献-科学参考

单词	item difficulty
释义	item difficulty Encyclopedia 理学项目分析释 item difficulty项目难度被试完成测验项目任务时所遇到的困难程度。一般在学业和能力测验中会较多使用难度来考察项目对于被试的难易程度。
随便看	powder preparation of crude drugs powder prepared prepreg powder resin precoated filter powder rolling powder rolling forming 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

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。