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经济要发展,就会有更多的工程项目进行建设和改造。在过去三十多年的经济建设中,由于我们往往在事先对工程项目投资的经济效益缺乏分析研究,因此决策中常带有很大的盲目性,甚至建造了一些常年亏损、产品产销不对路的工程项目。为了最大限度地减少盲目性,尽量避免人力、物力、财力的浪费,在工程项目投资决策之前(通常称为投资前期)必须对项目的各种方案进行科学论证,比较分析,公正
Economic development, there will be more construction and reconstruction projects. In the past 30 years of economic construction, because we often lacked the analytical study of the economic benefits of prior investment in engineering projects, we often made a lot of blind decisions in our decision-making. We even built some perennial losses and did not produce and sell products properly project. In order to minimize blindness and try to avoid wastage of manpower, material resources and financial resources, scientific justification, comparative analysis and fairness must be carried out on various schemes of the project prior to the investment decision of the project (usually called the early stage of investment)