dihydric phenol
英
美
网络 二羟酚; 二元酚
双语例句
- The paper deals with selection of thermal isolation scheme, the project construction, checking and acceptance and effect testing in dihydric phenol project with significance for popularization.
介绍二元酚项目中保温方案的选择；保温工程的施工与验收；保温效果的测试与评价。具有推广意义。 - The hydroxylation of phenol to produce dihydric phenol is a rapid and strongly exothermal reaction, the activity of the complex-oxide catalyst decreased rapidly.
苯酚直接羟化制备苯二酚为液固相的强放热快反应，催化剂的活性衰减很快。