Photo taken on March 21, 2018 shows the installation site of a hemispherical dome at the No. 6 unit of China National Nuclear Corporation's Fuqing nuclear power plant in southeast China's Fujian Province. In May of 2017, a containment dome was installed on the No. 5 unit of the nuclear power plant, the first reactor featuring the Hualong One design. (Xinhua/Wei Peiquan)