2. The article discusses how to improve the
sizing properties of chitin size by enzyme degradation of chitosan.
文章讨论了通过酶法降解改善甲壳素浆料上浆性能的相关问题。
3. Competition, male athletes to wear the shirt collar and
sizing Kanjian, female athletes wear skirts and even wear a hat.
比赛时,男运动员要穿上浆领子的衬衣和坎肩,女运动员要穿裙子甚至还要戴帽子。