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1.The power-supply system is responsible for delivering electricity to homes and businesses.
电力供应系统负责将电力输送到家庭和企业。
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2.The new power-supply system has significantly improved the efficiency of our energy usage.
新的电力供应系统大大提高了我们能源使用的效率。
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3.The power-supply system was upgraded to meet the increasing demand for renewable energy.
电力供应系统升级以满足对可再生能源日益增长的需求。