wastecan污物桶wasten.废物；浪费；荒地v.浪费；滥用；消耗adj.荒芜的；无用的；浪费的wastewater reclamation废水回收waste water renovation废水净化回收, 废水再生waste roofing material废旧屋面材料waste-heat recoverer余热回收器waste treatment method废物处理方法waste water management废水管理waste asphalt concrete废旧沥青混凝土waste stripping liquid水解废液waste heat reclamation余热利用waste heat utilization废热利用