The thesis introduces the net present value method and the internal rate of return method which are most commonly used in the long term investment of pump enterprises.
介绍了泵业企业长期投资决策中最常用的净现值法和内部收益率法这两种决策方法。
The boosting of internal demand has increased investment for infrastructure construction and supported technology improvement of enterprises;
通过扩大内需，既加大基础设施建设投入，又支持企业技术改造；
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