Consumption ratio and its change is a key aggregate index, which reflex the state of national economy.

消费率及其变动是反映国民经济运行状况的重要宏观经济指标。

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You can then create your aggregate metrics and key performance indicators from these initial metrics.

然后您可以在这些初始指标的基础上创建聚合指标和关键性能指标。

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For example, flat files should have a trailer record telling the total of records in the file and an aggregate of the key fields.

例如，普通文件应该有一条尾记录，说明文件中的总记录数，以及关键字段的合计。

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Technology can help aggregate customer data and automate key processes but at the end of the day it all starts with adoption.

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When coupled with progress in the housing industry and resilient consumer demand these are key elements in shaping the profile of aggregate demand and supply in the US as well as pinpointing the improved efficiency in the allocation of resources.

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Wales international Evans, 19, played a key role in the last-gasp goal that levelled the tie on aggregate.

BBC: Midtj'land 0-1 Man City (agg 1-1)