The peak value load of main electric power consumers such as steel works causes electric power resource to waste, short supply of mains power and consumer to increase electric cost.

钢厂等主要用电大户的峰值负荷造成电力资源浪费，供电紧张及企业自身用电成本高居。

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The peak value load of main electric power consumer such as steel works causes to waste electric power resource, in short supply of mains power and to increase electric cost for consumer.

钢厂等主要用电单位的峰值负荷造成电力资源浪费、供电紧张及企业自身高成本用电。

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We can just treat the whole blackboard as mains frames.

我们可以把整个黑板当做main的框架。

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