“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	unsaturated polyester resin unsaturated polyester resin matrix composites unsaturated problem unsaturated rubber unsaturated soil unsaturated soil water movement unsaturated solution unsaturated vapor unsaturated vertex unsaturated zone unsaturation unscanned unscattered UNSCEAR unscented Kalman filter unsclerotized UNSD Unsealed Official Documents unsealed radioactive material unsealed radioactive source unseen companion unseen component unseen matter unselected marker unseparated

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