physical and mechanical properties of soil and rock

例句：

1. 1. The soil's physicaland mechanical properties greatly affect the growth ofplants.
   土壤的物理和机械性质极大地影响植物的生长。
2. 2. Engineers analyze the physicaland mechanical properties of materials to determine theirsuitability for use.
   工程师分析材料的物理和机械性质，以确定其是否适合使用。
3. 3. The study of physical and mechanicalproperties is crucial for understanding the behavior ofmaterials under load.
   研究物理和机械性质对于理解材料在负载下的行为至关重要。