那么优化能源结构到底在多大程度上影响到能源效率？
But to what extent does optimizing energy structure affect energy efficiency?
着力解决交通运输“卡脖子”路段，进一步优化能源结构。
We will work hard to resolve transportation bottlenecks and continue to upgrade energy structure.
提出优化能源结构，彻底改善空气质量的综合防治方案与建议。
A integrate controlling proposal and suggestion on the optimizing energy structure and improving thoroughly air quality were raised.
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