在中国北方，水资源危机已经十分严重。水污染、过度用水和干旱是主要原因，这三项因素导致的水资源累计损失已经超过2,000亿立方。
Its longstanding problem of water scarcity in the north has been compounded by pollution, overuse and drought, to leave an accumulated deficit of more than 200 billion cubic meters.
此外，通过允许累计该数据，可以构建DPAR的工作量和资源利用率以及任何变化的准确视图。
Also, by allowing this data to accumulate, you can build an accurate view of your DPAR's workloads and resource utilization as well as any changes.
百分比的资源综合利用工作，是随着比例的累计任职期间利用从动工到总期限的项目。
The percentage of utilization of resources was worked out as the ratio of the cumulative period of utilization from the commencement to the total duration of project.
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