词典释义：
双语例句
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The research shows that the versatile occurrence of organic sulfur are determined by the pre coal material, sedimentary environment, and catagenesis.
结果表明，煤中有机硫的存在形式是多样的，这主要取决于成煤母质、沉积环境和泥炭堆积后的成岩变化。