磷灰石

例句：

1. 1. The mineral compositionof the rock is mainly composed ofphosphate and calcium carbonate.
   这种岩石的矿物成分主要是磷酸和碳酸钙。
2. 2. Thephosphorus content in this type of soilis very high, which is beneficial forplant growth.
   这种土壤中的磷含量非常高，对植物生长非常有利。
3. 3. The researchon phosphogypsum has been widelyapplied in the construction industry.
   磷石膏的研究在建筑业中得到了广泛的应用。