This historic law called for the rehabilitation of the entire 40,000-square-mile Tennessee Valley basin through the institution of public power, cheap electricity, soil conservation, and other improvements.
这项历史性法律呼吁通过公共电力制度、廉价电力、土壤保护和其他改进来恢复整
40,000 平方英里
田纳西河谷盆地。