Since the process of scientific research work contains many stochastic factors, using a quantitative analysis method for valuing its economic efficiency is quite a complex problem.
由于科学研究过程包含着许多随机因素，因此，用定量分析方法来评价它的经济效益是一个十分复杂的问题。
Since the process of scientific research work contains many stochastic factors, using a quantitative analysis method for valuing its economic efficiency is quite a complex problem.
由于科学研究过程包含着许多随机因素，因此，用定量分析方法来评价它的经济效益是一个十分复杂的问题。
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