“four fractions”的概念、定义、翻译、参考文献-科学参考

单词	four fractions
释义	four fractions Encyclopedia 工学原油评价释 four fractions四组分重质油品中饱和烃、芳香烃、胶质和沥青质四个族组分。其含量用质量分数表示。
随便看	footpath foot patrol footplate footpoint foot-pound foot-pound-second footprint footprint analysis footprint examination footprint identification footprinting mechanism footprint latitude Footprint Nebula foot rot footrule foot screw Foot Shaoyang Divergent Channel Foot Shaoyin Divergent Channel footstock Foot Taiyang Divergent Channel Foot Taiyin Divergent Channel foot type characteristics footwork examination Foot Yangming Divergent Channel Foping Xian

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。