???(???:CaCO3)???(????Si:???,Al,H2O),??????(???????Fe???,???????)???:1450??????(?????)??????(????)??????????(??????????????,)??????3-4%????(CaSO4)??
https://www.powershow.com/view4/7612da-YmU5N/CaCO3_Si_Al_H2O_Fe_1450_3-4_CaSO4_powerpoint_ppt_presentation
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