交待一下背景知识，中国目前电能结构中风电所占的比率只有0.4%，煤电占80%。
To put this in context, wind currently generates only 0.4% of Chinese electricity. Coal generates 80%.
产权比率高是高风险高报酬的财务结构。
High-equity ratio is high risk and high reward financial structure.
产权比率高是高风险高报酬的财务结构。
High-equity ratio is high risk and high reward financial structure.
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