急求翻译高手！【加分】

杜绝机译，意思已清楚。

The enumeration of the possible states is not quite complete. We have accounted for the periods when the load is satisfied and the times when there will be a real shortage of capacity. In addition, we need to separate the periods when the load is satisfied into periods where there is excess capability (more generation than load ) and periods when the available capacity exactly matches the load (generation equals load ). The latter periods are called zero MW shortage because there is no reserve capacity in that period. This information is needed in case an additional unit becomes available or emergency capacity needs to be purchased. This additional capacity would need to be operated during the entire period of a zero MW shortage because the occurrence of a real shortage is a random event depending on the failure of an operating generator.
可能情况的列举是不完全的。我们已经说明了负载得到满足的周期和容量将存在实际短缺的时间。除此以外，我们需要将负载得到满足的周期分离成存在过多容量的周期和（发电量超过负载）和可获得的容量正好与负载匹配的周期（发电量等于负载）。后面这种周期