The method and the condition of separation epoxy ethane from dihydric alcohol are described.介绍了环氧乙烷与二元醇的分离方法和条件.The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been i...

dihydric的音标：dihydric的英式发音音标为：[daɪ'haɪdrɪk]dihydric的美式发音音标为：[daɪ'haɪdrɪk]...

adj.二羟基的...