If, however, the extended dimensions are going to use different historical rates, the ratio of rates must be registered at extended dimension level.
但是，如果这些扩展维度要使用不同的历史汇率，则必须在扩展维度级别登记汇率之间的比率。
When attribute values for dimensions which contain historical details are added to a report it is necessary to specify which time context to use.
当向报表添加了包含历史详细信息的维度的属性值时，就需要指定要使用哪个时间上下文。
You should be aware of the fact that a too detailed set up of historical rates (for example on extended dimensions or journal Numbers) will make the analysis of converted accounts more complicated.
您应该注意一个事实：一个非常详细的历史汇率设置(例如在经过扩展的维度或日记账编号上的历史汇率)将使得经过转换的金额的分析更加复杂。
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