Irrigation projects in undeveloped areas can change local economies. 灌溉項目在發(fā)達地區可以改變當地經(jīng)濟。
Aid provided by the state and developed areas to national autonomous areas has promoted their economic development. 國家和經(jīng)濟發(fā)達地區對民族自治地區的支援,促進(jìn)了民族自治地區的經(jīng)濟發(fā)展。