自治州分为县、自治县、市。
Autonomous prefectures are divided into counties, autonomous counties, and cities.
通过除去移民因素，合并人口较少的县，他们把美国的3141个县分为了2068个“县级单位”；再调查每个县的死亡率。
They looked at death rates by county, having corrected for migration and merged sparsely populated ones so that America's 3, 141 counties became 2, 068 “county units”.
将庆元县划分为“北部稳定区”、“东部基本稳定区”、“西北部不稳定区”和“西南部极不稳定区”等四个“环境区”。
The county was divided into four zonations, as "north stable region", "east rough stable region", "north west unstable region" and "south west highly unstable region".
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