low-grade copper 中文意思是什麼

low-grade copper 解釋
低級銅
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • grade : n 1 等級，級別；階段；程度，標準，水平。2 〈美國〉（中小學的）年級；某一年級的學生。3 〈pl 〉 〈...
  • copper : n 1 銅；紫銅。2 銅幣，銅錢，〈pl 〉零錢。3 銅器；銅罐，銅壺，銅鍋；銅管；銅製品。4 （紫）銅色。5 ...
  1. Research progress on bioleaching of low - grade copper sulphide ores

    硫化礦高溫生物浸出工藝研究和應用進展
  2. Experiment study of preparing active cuprous chloride from low grade copper ore

    低品位銅礦制備活性氯化亞銅
  3. The production of copper oxide and high purity ferric oxide from low - grade copper ores

    浮選機槽內礦漿紊流強度對氧化礦浮選的影響
  4. The evaluationand utilization of low - grade copper orein dexing copper mine

    德興銅礦低品位銅礦石的評價與利用
  5. Study on bioleaching conditions of low - grade primary copper sulfide ore from yongping copper mine

    永平低品位原生硫化銅礦石細菌浸出條件研究
  6. Effect of silver ion on bioleaching of low - grade primary copper sulfide ores

    銀離子對低品位原生硫化銅礦石細菌浸出的催化
  7. Using l - sx - ew technology to treat low - grade copper ore, which can produce high quality 1 # cathode copper

    摘要採用浸出萃取電積工藝處理難選低品位銅礦，可產出高質量的1 #陰極銅。
  8. Abstract : effects of mixed re metals on the properties of low oxygen cleaned round copper rods manufactered by continuous casting and rolling were studied. it shows that trace re elements improve not only the elongation of the rods significantly but also the conductivity, meanwhile, reducing the oxygen contents in the material. in consequence, the product grade is raised from grade 2 to grade 1, and the final products are improved to higher - grade

    文摘:研究了混合稀土金屬對連鑄連軋生產的低氧光亮圓銅桿性能的影響.結果表明，添加微量稀土元素不僅能明顯提高材料的延伸率，而且還提高了其導電性能，同時降低了材料中的氧含量，性能指標從原來的2級品上升為1級品，從而提高了最終產品的檔次
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