两段程序都使用递减的计数器生成元素的值。
Both programs decremented a counter to generate the element values.
算例分析表明：最优价格是初始库存的递减函数，是潜在购买率和销售时间段的递增函数；
Simulation shows that the optimal price is a decreasing function of initial inventory and an increasing function of sale period and potential buying probability;
结果表明，在基坑开挖过程中，基坑壁附近的土体应力状态变化显著；锚杆锚固段应力呈非线性递减分布；
The result indicates that when the foundation pit is excavated, the soil stress state near the foundation pit wall changes obviously;
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