The paper was emphasized to demonstrate and present influencing factors siftingmethod, principles to divide polygon mesh units and to check predicted exactitude evaluation.
文章重点论证和提出了影响因素筛选、多边形网格单元划分的原则及预测精度评价的原理方法。
2
This paper reviews the progress of pyrethroid and the method of sifting and molecular de-sigh of pyrethroid. 58 references are presented.
综述了拟除虫菊酯的进展及新拟除虫菊酯的筛选和分子设计的方法等。参考文献58篇。
3
This part illustrates the selection of research method, the design of research plan and the sifting and enforcement of sample, that is, choose interviewees, collect materials and analyze materials.