survey for marking of boundary

例句：

1. 1.The survey team was sent to the area for a comprehensive assessment.
   调查小组被派往该地区进行全面评估。
2. 2. The survey revealed that there were over 1000 species of plants in the forest.
   调查显示，森林中有超过1000种植物。
3. 3. The survey results showed that the population growth rate had slowed down.
   调查结果显示，人口增长率已经放缓。