profile density

例句：

1. 1.The profile of the new model car is sleek and modern.
   这款新车型的轮廓设计流畅且现代。
2. 2.The profile density of the soil is high, which affects plant growth.
   土壤的轮廓密度高，这影响了植物的生长。
3. 3.The profile density of the forest canopy is an important factor in determining its ecological function.
   森林冠层的轮廓密度是确定其生态功能的重要因素。