Four of the key issues faced by power system designers are high efficiency, high reliability, low emission of carbon, and high flexibility.
电力系统设计人员面临的四个关键问题为：高效率、高可靠性、低碳排放及高适应性。
Energy efficiency improvement will be the main approach to carbon emission reduction for some time to come.
未来一段时期，提高能源效率是减少碳排放的主要途径。
Energy efficiency improvement will be the main approach to carbon emission reduction for some time to come.
未来一段时期，提高能源效率是减少碳排放的主要途径。
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