The method and the condition of separation epoxy ethane from dihydric alcohol are discribed .

介绍了环氧乙烷与二元醇的分离方法和条件。

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。