Yeast extract is essential to the production of long-chain dibasic acid .
酵母浸出物对长链二元酸的生产极为重要。
Test method for phthalic anhydride content of alkyd resins and esters containing other dibasic acids ( gravimetric )
醇酸树脂和含有其它二元酸的酯类的酞酸含量测试方法(重量法)
The influence of hydroxyl value of polyester resin , types and proportions of dibasic acid , and dosage of hydroxyl acid on the performance of final coat film were discussed .
