noun
数据来源:WordNet
With the power efficiency plan in American California public utility company as an example , the cost benefit analysis is clearly explained .
利用美国加州公用事业公司实行电力能效计划的数据具体说明成本效益分析。
The Rebuilding of Joint Stock System in City Public Utility Company and the Pattern
城市公用企业股份制改造及其模式