近似积分 meaning in English

approximate integration
approximatintegration
point-by-point integration

We can make use of approximate integral in the method of simpson to get the mtbf of system . then we can gain the curve with time
利用沿时间轴按辛普森( simpson )法近似积分系统的可靠性曲线可以得到系统的mtbf 。
Iv ) constructing of a kind of approximate integration conservative remapping algorithm . through analyzing a second order sign - preserving conservative remapping method , two conservative remapping algorithms have been constructed by using the reconstruction method to take the place of the positivity - preserving error compensation algorithm
( 4 )近似积分守恒重映方法构造：在分析了二阶保号守恒重映方法的基础上，通过重构的方法代替原算法中的误差补偿方法，构造了两个守恒重映方法。