“placer mineral”的概念、定义、翻译、参考文献-科学参考

单词	placer mineral
释义	placer mineral Encyclopedia 理学矿物释 placer mineral重砂矿物沉积物中密度较大（一般在2.9克/立方厘米以上）、机械性质和化学性质比较稳定的碎屑矿物。
随便看	left truncation and right censoring left-truncation and right-censoring left turn left twisted helix left uniformity left unique relation left unit left-unitary kernel left unit element left unit subsemigroup left unity left universal solution left vector space left ventricle left ventricular ejection fraction leftward acceleration leftward extraction rule left weak dimension left-wing film movement left-wing movement in music left wing of an occurrence left zero left zero divisor left zero element left zeroid

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。