n.废水；污水
The huge outlet debouched the wastewater. 大出口排出废水。
Rubbish can be used as a sorbet of wastewater. 垃圾有可能作为废水中有机物的吸附材料来使用。
The wastewater treatment system should be properly maintained. 污水处理设施必须妥善维修。
Biotreatment techniques are widely used in wastewater treatment. 生物法是目前污水处理中广泛采用的方法。
