“set of the first category”的概念、定义、翻译、参考文献-科学参考

单词	set of the first category
释义	set of the first category Mathematics ＞泛函分析＞空间和泛函＞释义 set of first category第一范畴集＞拓扑学与几何学＞一般拓扑学＞释义 set of the first category第一类型集 set of the first category第一范畴集^†
随便看	up quark upright Upright Commissioner Yu Chenglong upright of jacket upright position upright projection upright pyramid of biomass Uprising of Abdullah Hassan Uprising of Chen Sheng and Wu Guang Uprising of Lake Beloye Uprising of Sicilian Slaves uprisings of China Merchants' 13 ships Uproar in Heaven U-process U-process resistivity UPRONA UPS upsampling UPSC upscaling of fluid flow in porous media upscattering up-selling upsetting upshift upshot

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。