求翻译：国家电网公司、南方电网公司、中国华能集团公司、中国大唐集团公司、中国国电集团公司、中国华电集团公司、中国电力投资集团公司、中国电力企业联合会、华北电力大学是什么意思？

State Grid Corporation , China Southern Power Grid Corporation, China Huaneng Group , China Datang Corporation , China Guodian Corporation , China Huadian Corporation , China Power Investment Corporation , China Electricity Council , North China Electric Power University

National Grid company, Southern Power Grid Corporation, China Huaneng Group, China DATANG group company, the China State Power Corporation, China Huadian Corporation, China Power Investment Group Company, China's electric power enterprises federation, north China Electric Power University

National Electrical network Company, south the electrical network company, the national essence can the group company, Chinese Datang Group Company, Chinese International telegram Group Company, the national essence electricity group company, Chinese Electric power Investment Group Company, Chinese

State grid Corporation, China Southern power grid Corporation, China Huaneng group, China Datang Corporation, China guodian Corporation, China Huadian Corporation, China Power Investment Corporation, the China electricity Council, North China electric power University

正在翻译，请等待...