Switzerland has unveiled its latest renewable energy innovation: a giant water battery.
원문출처 : https://www.cnn.com/2022/08/01/world/water-battery-switzerland-renewable-energy-climate-scn-hnk-spc-intl/index.html
원문출처 : https://www.cnn.com/2022/08/01/world/water-battery-switzerland-renewable-energy-climate-scn-hnk-spc-intl/index.html