无工业价值的的英文

uncommercial

• 无:    not have; there is ...
• 工业:    industry
• 价值:    value
• 的:    4次方是 The fourth po ...

例句与用法

1. It is proved that the electric conductivity of ore - forming solution can be used to seek for ore - forming fractures , to select the best mineralization section , to distinguish industrial and non - industrial auriferous quartz veins , to reflect the rich or poor levels of orebodies , to evaluate the stability of orebodies , to judge the denuding levels of ore veins , and to prospect the mineralization in depth
   实践证明，该方法在以下几个方面具有应用前景： ( 1 )查找成矿断裂，优选最佳成矿区段； ( 2 )区分有无工业价值的含金石英脉； ( 3 )反映矿段或矿体的贫富程度； ( 4 )评定矿体的稳定性或矿化不均匀性； ( 5 )评估矿脉的剥蚀程度； ( 6 )矿脉深部成矿预测。