求翻译：5月17日，集团公司副总经理、国家电力规划研究中心副主任于刚到我院调研，并与陕西省电力公司总经理吕春泉座谈。是什么意思？

May 17, Group Vice President, deputy director of the National Electric Power Planning and Research Center arrived in the hospital research and discussions with the Shaanxi Provincial Power Company general manager Lvchun Quan.

On 17 May, the company vice president, National Electricity planning deputy director of the Institute has just been to my house research, and general manager with the Shaanxi Lu spring power companies.

On May 17, group company deputy general managers', national electric power plan research center assistant director in just arrived my courtyard investigation and study, and discussed with Shanxi Province electric power company General Manager Lu Chunquan.

On May 17, Group Deputy General Manager, Deputy Director of the National Research Center for electric power planning Yu Gang to my research, and General Manager of Shaanxi electric power company Lv Chunquan talks.

正在翻译，请等待...