secondary ore controlling structures的意思|示意

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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 order branches 二级分支
secondary copper sulphide ore 次生硫化铜矿
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