production of electricity from geothermal energy
/pɹədˈʌkʃən ɒv ɪlɛktɹˈɪsɪti fɹɒm dʒˌiːəʊθˈɜːməl ˈɛnədʒi/
n
意味：Hot water contained in the ground near a volcano, geyser or thermal source is piped to the surface by drilling to extract steam and produce electricity.