On 13 May, in the eastern sea of the South China Sea, the installation of a piece of the NCP 20-4 drilling platform with a weight of more than 15,000 tons was completed, creating a new record of the installation of the weight of the domestic oil and gas platforms, filling the technical gaps in the autonomous design of the installation of the national floating floating pot, which are important to safeguard national security and to build a strong maritime State. ? According to Liu Jiayi, Direct...