The application of income present value method mainly involves three appraisals parameters, namely future cash flows, discount rate and the discount period.
有关收益现值法的运用，主要涉及到三个评估技术参数，即收益现金流、折现率和收益期限。
Proceeding mineral resources evaluation, the income present value method does not well consider the influences of all the factors in the production process.
收益现值法在进行矿产资源评价时，没有对生产过程各因素的影响进行充分考虑，因而计算值会出现偏差。
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