盈余分析使用与比较基准一起保存的原始成本估计值以及到当前日期为止的实际工时，以显示实际成本是否在预算范围内。

Earned value USES your original cost estimates saved with a baseline and your actual work to date to show whether the actual costs incurred are on budget.

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针对由于汽车模具调试工时难以确定所导致的制造成本和生产周期与生产实际相差较大的问题，提出了基于工时管理系统的汽车模具调试工时估计方法。

There are many difficulties in estimating the manufacturing cost and production cycle of the die in production quoting due to the uncertainty of the man-hour of die adjusting and testing.

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该工程施工时，选择与实际结构相仿的网壳作为施工脚手架，利用综合法进行了施工安装，有效地降低了成本和缩短了工期。

During the construction, a similarly reticulated shell was selected as the scaffold and in order to decrease the cost and shorten the setting time, an integrated method was adopted.

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该工程施工时，选择与实际结构相仿的网壳作为施工脚手架，利用综合法进行了施工安装，有效地降低了成本和缩短了工期。

During the construction, a similarly reticulated shell was selected as the scaffold and in order to decrease the cost and shorten the setting time, an integrated method was adopted.

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