“graded sand and stone”的概念、定义、翻译、参考文献-科学参考

单词	graded sand and stone
释义	graded sand and stone 级配砂石
随便看	Olbers method Olbers paradox old old account old account period old age old-age benefit old-age care old-age pension old arable soil old balance old brain oldbury stone old case old chain old channel old compression fracture old concrete old disk star old dislocation old dislocation of elbow old dislocation of shoulder old ectopic pregnancy Oldenlandia oldenlandia diffusa

科学参考收录了1248194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。