河流底泥污染
The river’s sediment pollution
河底泥沙搬运
bottom sediment transport
底泥质量标准
sediment quality guidelines SQGs
底泥原位修复
In-situ Sediment Remediation
底泥原地稳定化
in-situ sediment treatment
底泥污染物释放
sediment contamination release
底泥粒级
sediment particle size fraction