changes in soil quality

• 土壤质量变化

changes in soil quality的用法和样例：

例句

1. The quality of seismic data varies tremendously.
   地震资料的质量变化巨大。
2. No differences in health-related quality of life over time were found, with one exception.
   随时间推延，除一例外，没有发现与健康相关的生活质量变化。