Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/9625a7871d4619a11ea73c9ec9d5d63b.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 dibasic acid例句_dibasic acid英汉例句_dibasic acid双解例句_按摩法牛津词典
The polyester or copolyester can be converted into dimethyl terephthalate of binary acid and glycol by method of methanolysis. 介绍用甲醇醇解法把聚酯或共聚酯解聚成二元酸二甲酯和二元醇。