“mean grade of ore district”的概念、定义、翻译、参考文献-科学参考

单词	mean grade of ore district
释义	mean grade of ore district Encyclopedia 理学固体矿产工业指标释 mean grade of ore district矿床（区）平均品位整个矿区固定的矿体中有用元素或有用矿物含量的平均含量。
随便看	dermatan sulfate dermatine dermatitis dermatitis aestivale dermatitis herpetiformis dermatofibroma dermatogen dermatoglyphic dermatoglyphics dermatome dermatometry dermatomyositis dermatophytids dermatosclerosis dermatosis pigmentosus dermatosome Der Meteor dermis Dermitron dermomuscullar sac dermomyotome derogatory derogatory matrix derogatory word Derong Xian

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。