Then the catalysts of high activities were selected to be used in the preparation of mixed dibasic acid dimethyl esters(DBE).

通过实验选出催化活性高的催化剂，用于催化合成混合二元酸二甲酯（DBE）。

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Then the catalysts of high activities were selected to be used in the preparation of mixed dibasic acid dimethyl esters(DBE).

通过实验选出催化活性高的催化剂，用于催化合成混合二元酸二甲酯（DBE）。

youdao