secondary copper sulphide ore的意思|示意

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次生硫化铜矿

secondary ore controlling structures 二级控矿构造
secondary ore dilution 二次矿石贫化
secondary-order conditioning secondary-order调节
secondary order oscillation 次阶振荡
secondary order structures 二级序结构
secondary organ rudi we are pirates, these data are stolen from youdao 我们是海盗，这些数据是从有道偷来的
secondary orifice disc 二级孔板
secondary origin detail 二次起源细节
Secondary centers of origin 次要起源中心
origin of secondary pores 次生孔隙成因