So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...
增加丙烷脱沥青的溶剂比,用加氢制代替白土制等,此外,在含硫原产基础时,对原也应适当选择。
So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...
增加丙烷脱沥青的溶剂比,用加氢制代替白土制等,此外,在含硫原产基础时,对原也应适当选择。
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