“school dictionary”的概念、定义、翻译、参考文献-科学参考

单词	school dictionary
释义	school dictionary Encyclopedia 文学词典释 student's dictionary；school dictionary学生词典教学词典的一种类型，专门为本族语用户语言学习和语言教学而编写。与学习词典相区别。
随便看	sigma algebra prior to tau sigma-algebra prior to tau sigma-algebra prior to τ sigma aromaticity sigma bond sigma bond metathesis sigma-compactness sigma-compact set sigma-compact space sigma-complete sigma-complete ideal sigma-complete lattice sigma-completeness sigma complete vector lattice sigma complex sigma discrete family sigma-discrete family sigma electron sigma field sigma-field sigma field of events sigma-field of events sigma-field of sets sigma field prior to tau sigma-field prior to tau

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。