研究期法

研究期法研究期法
  1. 工程经济给出寿命期不等的互斥方案求解的多种解法,如最小公倍数寿命法、无穷大寿命法、研究期法、净年值法等,但对上述诸种方法之间的关系缺乏系统研究。

    There are several solutions for exclusive projects in engineering economics , taking minimum common multiple lifetime method , infinite lifetime method , research period method and net annual value method as examples . There are no systematic researches for these solutions mentioned above .

  2. 斜纹夜蛾发生期预测预报的研究&历期预测法

    Study on Forecast of Occurrence Date of Spodoptera litura by Developmental Duration Method