wet-gravity concentration method

例句：

1. 1. The wet-gravity sedimentation method is commonly used in the analysis of biological samples.
   湿重沉淀法常用于生物样本的分析。
2. 2.The wet-gravity sedimentation method is an effective way to separate impurities from a solution.
   湿重沉淀法是一种有效的方法，可以从溶液中分离杂质。
3. 3. The wet-gravity sedimentation method has been widely used in environmental monitoring.
   湿重沉淀法在环境监测中被广泛应用。