“ostracum”的概念、定义、翻译、参考文献-科学参考

单词	ostracum
释义	ostracum Geology and Earth Sciences See shell structure; skeletal material.
随便看	rational canonical form rational choice theory rational expectations rational function rational ignorance rationalism rationality rationalization rationalize rationalized MKS system rationalized Planck constant rationalized units rational language rational number rational reconstruction rational type rationing ratio scale ratio test Ratitae rat-race rattlesnake Raukumara Raunkiaer, Christen Raup, David Malcolm

科学参考收录了60776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。