尽管人们不大相信有来世，但是他们都能坦然地祈求和面对天国使者来为他们舒解死亡的痛苦和认清生命的意义。
Even when people do not much believe in the hereafter, they easily invoke or envisage heavenly beings to ease death and make some sense of life.
以线性扩散波方程在自由下边界条件下的解析解为例，利用遗传算法来确定扩散波方程的参数。
The paper demonstrated the method for solving the parameters of the linear diffusive wave equation under free downstream condition by using genetic algorithms.
本文提出并运用启发式算法来求解该问题。 首先把问题分解为两个子问题，即配送中心的订货问题和客户的配送问题，分别求解得到问题的初始解；
First, the problem was divided into two sub-problems which are a distribution center's ordering problem and a delivery problem to obtain the initial feasible solutions;
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