solid phase volume

例句：

1. 1. The solid phase volume of the material is crucial for its mechanical properties.
   该材料的固相体积对其机械性能至关重要。
2. 2. The researcher found that the solid phase volume can affect the material's strength and toughness.
   研究者发现，固相体积会影响材料的性能强度和韧性。
3. 3. In the process of material preparation, the solid phase volume needs to be controlled to ensure the quality of the final product.
   在材料制备过程中，需要控制固相体积以确保最终产品的质量。