“第二语言知识”的概念、定义、翻译、参考文献-科学参考

单词	第二语言知识
释义	第二语言知识 Encyclopedia 文学第二语言习得释 second language knowledge第二语言知识一个人掌握的一门第二语言的知识。
随便看	fractional cumulative yield fractional cut fractional cutting-plane algorithm fractional D branes fractional D-branes fractional derivative fractional derivative and integral fractional differential fractional differential equation fractional differential integral equation fractional differential-integral equation fractional differential operator fractional differentiation fractional digit fractional dimension fractional distillation fractional divisor fractional drag fractional [electric] charge fractional electric charge fractional equation fractional equipment fractional equivalence fractional exponent fractional expression

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。