英语语法分析

Recent methods of Nipagin esters were reviewed in the paper.

对近年来尼泊金酯类催化合成方法进行评述。

Application of Nipagin complex ester as a preservative used in pickles was studied.

该文研究了尼泊金复合酯作为防腐剂在酱菜中的应用。

Compared with benzoic acid and sorbic acid, Nipagin has a good market and development prospects.

通过与苯甲酸和山梨酸比较，说明尼泊金酯具有良好的市场和发展前景。