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 .

讨论了聚酯树脂羟值、二元酸品种及比例和羟基酸用量对最终漆膜性能的影响。