The results indicated that the trace elements molybdenum and zirconium increased considerably the gas yields of the lignitic organic matter while selenium did not.
分析结果表明，除硒元素外，随着钼元素和锆元素的加入，褐煤有机质气态产物的生成量显著提高。
The results indicated that the trace elements molybdenum and zirconium increased considerably the gas yields of the lignitic organic matter while selenium did not.
分析结果表明，除硒元素外，随着钼元素和锆元素的加入，褐煤有机质气态产物的生成量显著提高。
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