In technology, four process schemes, such as crude ore cyanide leaching, flotation -cyanide leaching of flotation concentrate, fractional bulk flotation and selective flotation, were put forward.
技术上提出了原矿直接氰化浸出、原矿浮选—浮选精矿氰化浸出、原矿分步混合浮选和优先浮选四个方案，并比较了它们的特点。
Designing on this scale was not easy, so Zimmer says they had to be selective about what areas to concentrate on.
设计这种规模是不容易，所以吉玛说，他们必须选择对哪些领域集中。
The selective removal of colored polyphenols oxidation products is ideal for apple juice concentrate production.
选择性地去除有颜色的多酚氧化产物，是理想的苹果浓缩汁加工工艺。
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