李国安

  • 网络Li Guo'an;Gon-Ann Lee
李国安李国安
  1. 五年六次创奇迹&记北京军区给水工程团团长、水利专家李国安

    Six miracles within five years : an introduction of Li guo'an , a hydrologist and regimental commander of the Hydrologic Engineering regiment , beijing military area