POLabbr.石油；燃料与润滑剂（=petroleum；oil and lubricant）abbr.北极星导弹（=Polaris）Polmix多粘菌素B[多肽类抗生素]

1. The properties of polyphenol oxidase in the chestnut kernel are studied.
   采用分光光度法对板栗仁中多酚氧化酶的活性进行了研究。