In the calculation of the amount of capital recovery that the inverse operation of annuity present value, capital recovery factor is the reciprocal of annuity present value coefficient.
在资金回收量的计算中，企业年金现值的逆操作，资本回收系数是年金现值系数的倒数。
The value of non-uniform distributed factor of shear stresses in the wall, using in present anti-seismic norm, is discussed.
本文还对现行抗震规范中剪应力不均匀系数及窗间墙的简化计算方法进行了讨论。
This paper considers every factor affecting the well spacing density, uses net present value to improve the method for calculating economy rational well spacing density of matured oilfield.
本文提出经济采收率的概念 ，并以油田投入与经济极限井网密度关系及谢尔卡乔夫公式为基础 ，根据经济学投入产出均衡原理 ，建立了具有实际应用价值的经济采收率模型。
This paper considers every factor affecting the well spacing density, uses net present value to improve the method for calculating economy rational well spacing density of matured oilfield.
本文提出经济采收率的概念 ，并以油田投入与经济极限井网密度关系及谢尔卡乔夫公式为基础 ，根据经济学投入产出均衡原理 ，建立了具有实际应用价值的经济采收率模型。
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