The coal extraction rate could be increased with the suitable selected solvent, the increased extraction temperature, the acid pre-treatment before the thermal extraction and other method.
选择合适溶剂、提高萃取温度、热萃取前加酸预处理等方法均可提高煤的萃取率。
Methods Etodolac solid dispersion was prepared with PEG as carrier by solvent-fusion method and identified by differential thermal analysis.
方法选用聚乙二醇为载体，采用溶剂-熔融法制备依托度酸固体分散体，通过差热分析对固体分散体进行鉴定。
The cerium in the sample prepared by solvent-thermal method exists as Ce3+, and it mostly occupies position B of spinel.
溶剂热法制备的铁氧体样品中，铈离子以三价形式存在，因而主要占据尖晶石晶格的B位。
The cerium in the sample prepared by solvent-thermal method exists as Ce3+, and it mostly occupies position B of spinel.
溶剂热法制备的铁氧体样品中，铈离子以三价形式存在，因而主要占据尖晶石晶格的B位。
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