settlement isoline

例句：

1. 1. The settlement isoline isa critical factor in determining the optimal locationfor a new development.
   定居等高线是确定新开发地点最优位置的关键因素。
2. 2. The government has been working on aplan to relocate residents from thearea affected by flooding, using the settlementisoline as a guide.
   政府一直在努力制定计划，将受洪水影响地区的居民重新安置，以定居等高线为指导。
3. 3. The settlement isoline isoften used to identify areas of high populationdensity and potential for urbanization.
   定居等高线通常用于识别人口密集区和城市化潜力区。