提出一种针对有机分子的新的子结构匹配方法，子结构采用树状结构数据表示，方法简单灵活，匹配快速准确。
A novel substructure match method is developed in our group. Tree data is introduced to express substructure, which make substructure match simple, quick and flexible.
采用加入少量碳酸钠助剂的盐析法新配方处理回收退浆废水中的聚乙烯醇（ PVA），并通过正交实验得出了新凝结剂的最佳组成配比。
The recovery of polyvinyl alcohol(PVA)from simulated desiring wastewater by new salting-out is investigated. The optimal component ratio of new salting agent is obtained through orthogonal experiment.
为达到较高的反射率，必须采用新的乳浊剂，新的搪瓷配方和新的搪瓷制造工艺。
We made the high opaque reflecting materials by using new opaque agent, new enamel formula and new enameling technology.
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