Carry on Korean pine nut unsaturated fatty acid extraction experiment by the press way, whose results indicate the yield was much lower than the one done by supercritical CO2 extraction method.

同时用压榨法进行红松种仁不饱和脂肪酸提取的对比实验，结果显示在实验条件下其提取的收率要远低于超临界CO_2萃取法。

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The polymer of maleic acid(PMA) was first prepared by water phase polymerization with maleic anhy_dride, and then esterified with citric acid(CA) to form PMA/ CA durable press finishing agent.

探讨了用马来酸酐水相聚合成聚马来酸（PMA） ，再与柠檬酸（CA）酯化成聚多元羧酸（PMA/CA）免烫整理剂的合成工艺；

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Pear vinegar is a kind of fruits vinegar made of pear as the main material pressing. press-ing, alcoholic fermentation, acetic acid fermentation.

梨醋是以梨为主要原料，经破碎、榨汁、酒精发酵、醋酸发酵而成的一种果醋。

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