县。Р第二阶段:“文革”至改革开放前。1968年,安徽省**委员会成立,各专、市、县也相继成立革委会。1971年全省专区改为地区,同年濉溪市改为淮北市,铜陵特区改为铜陵市,1972年升芜湖为省辖市,1975年又恢复屯溪市,增设阜阳市,均为地辖市。这一时期的区划调整,主要是以区划的名称变化为主,地域的变化不大。РРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilitiesРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities5РРРof rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities