“华夏植物群”的概念、定义、翻译、参考文献-科学参考

单词	华夏植物群
释义	华夏植物群 Encyclopedia 理学古植物学释 cathaysia flora华夏植物群晚石炭世早期形成的一个独立热带-亚热带植物群，经晚石炭世逐渐繁盛，到二叠纪末期消亡，是当时世界四大植物群之一。
随便看	reduced product reduced product space reduced proper motion reduced properties reduced quadratic equation reduced quadratic form reduced quantity reduced radiation reduced rank reduced-rank regression reduced relative degree reduced representation reduced residual radioactivity nuclear weapon reduced residue class reduced residue classes modulo an ideal reduced residue system reduced ring reduced root system reduced sampling inspection reduced scheme reduced sequence reduced sheaf reduced space reduced square reduced statistical operator

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。