For this problem, present decision-makers often define an interval number to denote this indexvalue, but none has studied the interval number decision model in grey target decision.
在此情形下，人们常常对指标值给出一个区间，到目前为止，尚未有人研究区间数灰靶决策。
2
What insufficient is that the index considered by the tax department at present when using the peak value analysis is partial to experience and the scope of consideration is quite limited.
不足的是，当前税务部门在使用峰值分析法中，所考虑的指标偏向于经验，而且考虑的面比较有限。
3
To counteract the weakness of net presentvalue, a new index, the utility sum of accumulated net-cash-flow presentvalue, is put forward in this paper.