relative saturation

例句：

1. 1. The relative saturation of the soil is crucial for plant growth.
   土壤的相对饱和度对植物生长至关重要。
2. 2.The relative saturation of the oil in the reservoir is an important factor in determining its yield.
   油藏中油的相对饱和度是决定其产量的一个重要因素。
3. 3.The relative saturation of the water in the lake has been measured to determine its ecological impact.
   湖泊中水的相对饱和度已被测量，以确定其生态影响。