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1·The snow Cover Depletion Curve based on remote sensing is one of the most important parameters of snow-runoff simulation models. Cloud is the major factors that affect the accuracy of snow mapping.

根据遥感数据获得的雪盖消融曲线是输入到融雪径流模型中一个最重要的参数，云是影响积雪解译精度的主要因素。

2·Net depletion is the ultimate decline curve even after conducting more development drilling, workover and other expenditures to increase production.

净枯竭是指进行更多开发钻井、修井和其他支出以提高产量后的最终递减曲线。