问题描述：
求动力英语翻译.该句话：It is a 600MW supercritical sliding pressure operation once-through boiler
整句话为：It is a 600MW supercritical sliding pressure operation once-through boiler with spiral waterwall and single reheater.
整句话为：It is a 600MW supercritical sliding pressure operation once-through boiler with spiral waterwall and single reheater.
问题解答：
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