soil drainage map

例句：

1. 1. Thesoil drainage map shows the areas with highwater retention capacity.
   土壤排水图显示了高保水能力的区域。
2. 2. Thesoil drainage map helps farmersto identify areas that need irrigation.
   土壤排水图帮助农民识别需要灌溉的区域。
3. 3. The soil drainage mapis essential for agricultural planning and management.
   土壤排水图对于农业规划和管理至关重要。