磷块岩 meaning in English

phosphatic rock
phosphorite
rock phosphate

Uranium is frequently enriched by sorption or chemical combination in shales, lignites and phosphorites .
铀经常为页岩，泥炭和磷块岩所吸附或化学结合态而富集。
Phosphorite ; upwelling ; hot spot activity
磷块岩上升洋流热点活动
The phosphorite and genesis of industrial p deposit in east yunnan
滇东磷块岩及工业磷矿床成因
Double - reverse flotation process of phosphate rock that contains silica and calcia
某硅钙质磷块岩双反浮选工艺研究
Test of leaching rare - earth elements from phosphate rock containing rare - earth elements
含稀土磷块岩稀土浸出探索性试验

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