介绍了增强型浸润剂在使用过程中产生的沉淀对生产和产品质量造成的影响，系统分析了可能产生沉淀的各方面原因。
Effects of precipitates formed in reinforcing size during its use on glass fiber production and product quality are described, and various possible causes for precipitation analyzed.
另一方面系统分析了在收益现值法中引入回归分析方法来预测经济林产品产量问题。
On the other hand, it systematically analyzed the method that it could use the Regression Analysis to predict the yield of forest products in the income approach.
根据系统动力学在港口系统分析和煤炭问题方面的研究现状，指出目前定量分析方法运用的缺憾。
According to current research on the port and coal issues on the basis of system dynamics, the defect of current quantitative analysis method is pointed out.
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