“学习困难”的概念、定义、翻译、参考文献-科学参考

单词	学习困难
释义	学习困难 Encyclopedia 理学学习差异释 learning disabilities; LD学习困难学生的感官和智力正常，但在听、读、说、拼、写和计算等方面存在某种障碍，学习成绩明显低于同年级学生、远未达到教学目标的现象。
随便看	variable reluctive transducer variable rules variable selection variable selection for linear regression model variable separation method variable sign variables inspection variable source variable-spacing interferometer variable-spacing interferometry variable specific impulse magnetoplasma rocket variable-speed constant-frequency variable speed control moment gyro variable speed drive variable speed operation variable speed pumped storage variables quality characteristic variable-stability aircraft variable stability flight control variable stage variable star variable stator vane variable step size variable step size method variable stroke technology for internal combustion engines

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。