The reserve costs of China Petro-Chemical Corporation from 1986 to 2002 are calculated by the different statistical methods of year mean, cumulative mean and running mean.
最后按照单年平均、累计平均和移动平均等不同统计方法，对中石化所属油田的油气储量成本进行了测算和分析。
Mean annual increment — the cumulative volume of a forest stand at the end of each decade divided by the number of years the stand has been in existence.
平均年度增量——森林每十年末占有的累积容量除以已经在此生存的年数。
A cumulative damage model is proposed, which can be used to consider the influence of in plane bi-axial stresses and mean stress on the fatigue behavior of unidirectional laminates.
推荐了一种应变损伤累积模型，能够考虑单向板面内多轴应力和平均应力的影响。
应用推荐