The phosphorus reserves in Xifeng are a main composition of phosphorus rock deposit formed during the Sinian Period in the center of Guizhou.
息烽磷矿是黔中元古代震旦纪陡山沱期磷块岩矿床的重要组成部分。
They mined the rock, artificially break it down and put the Phosphorus into agricultural fertilizers.
他们开采岩石，人工把它分解，然后把磷放进农业肥料里。
The available phosphorus degradation of SSP is analyzed on the productive process from phosphate rock with high iron and aluminum contents.
介绍含高铁铝磷矿制过磷酸钙，产品有效磷退化的情况。
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