optimistic estimate

基本解釋

You basically take a weighted average of a pessimistic, expected, and optimistic estimate for the activity duration.
你可以通過對最長的活動需時、預(yù)期的活動需時、最短的活動需時進行加權(quán)平均來估算活動需時。
The proportions have been fixed since 1987 based on an over-optimistic estimate that annual run-off is 58bn cubic metres.
自從1987年以來，基于一個過于樂觀的總水量估計（每年580億立方米），配額都是固定的。
The optimistic estimate is a few days, but the mechanic can't tell us for sure until he spends more time with the RV (much like investigating a defect in our code).
利觀的估計是幾天，但是直到機械師在 RV 上花費了更多時間，他才能確定的告訴我們（非常像調(diào)查代碼中的缺陷）需要多長時間。

Goldman Sachs's calculations suggest that, to reduce growth from 4% to 3%, (an optimistic estimate of America's new sustainable growth rate) the financial conditions index would need to increase by 1.25 percentage points.
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Even that is probably a wildly optimistic estimate.
ECONOMIST: China’s private surprise