As we are using actual power figures, we don't want to use the computers category anymore, but instead want to deal with the exact amounts of electricity consumed.
由于我们使用的是实际的电量数，因此我们不再需要使用计算机类别，而是需要处理电能消耗的确切数量。
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Thus, any Wikipedia category that has a category containing the word science or history (it doesn't have to be an exact match) will be put into a bucket with other documents for that category.