经岩石化学及微量元素等的研究表明，这是一个由贫硅富铝的沉积岩经高级变质作用形成的矿床。
Based on the investigation by petrochemistry and trace elements, It is regarded that this corundum deposit are formed…
所以冷喷锌涂料的防腐蚀性能优于喷锌(铝)、热镀锌及其他富锌涂料。
So cold zinc spraying coating corrosion resistance is better than that of spraying zinc (aluminum), hot galvanized and other zinc rich coatings.
经过大量试验，证实了用石灰烧结法处理富钾板岩生产钾铝产品的工艺是可行的。
After a lot of tests, it proves that it is feasible to produce potassium and aluminium products with potassium SLATE by lime sintering process.
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