水文物理性质
hydrologic-physical properties
hydrophysical properties
水文物探测井
hydrologic geophysical logging
水污染物
Water pollutant
total pollutant
Water pollutants
Water contaminant
water pollution
emission standard
Protection of Water Resources
水污染物排放
water pollution discharge
水污染物排放标准
pollution discharge standard
水生植物群落
Aquatic plant community
aquatic vegetation
aquatic macrophyte community