片语
water quality pollution characteristics水质污染特征
Water resources pollution水资源污染
water contamination[环境] 水污染
controlling water environmental pollution水环境污染控制
water quality pollution trends水质污染趋势
control water environment pollution水污染防治
fisheries water area pollution渔业水域污染
water thermal pollution水域热污染
water environmental pollution水环境污染
water surface pollution水面污染