It is pointed out that Peters'equation is just the formula with firstorderapproximation.
指出该公式只是一阶近似意义下的公式，并导出二阶近似、三阶近似意义下的公式。
2
Dr Worm acknowledges that the figures are "only a firstorderapproximation" but says that if anything they are conservative.
Worm博士承认这些数据只是一阶近似，但他认为如果没有什么区别的话，这些数据已经是保守的了。
3
Nonlinear directly estimating formula for exponential curve which, through fixed point, was derived, by using firstorderapproximation of Taylor expansion.