“placer”的概念、定义、翻译、参考文献-科学参考

单词	placer
释义	placer [`plās·ǝr] ^GEOLOGY A mineral deposit at or near the surface of the earth, formed by mechanical concentration of mineral particles from weathered debris. Also known as ore of sedimentation.
随便看	open-loop control system open map open mapping theorem open n-cell open-packed structure open pack ice open-phase protection open-phase relay open-pit mining open-pit quarry open plan open plug open reading frame open resonator open roadstead open rock open routine open sand open sea open set open shop open-side planer open-side tool block open sight open simplex

科学参考收录了103327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。