电子废弃物回收网络规划
design for recycling network of WEEE
城市生活废弃物
municipal solid waste
municipal household refuse
广州市生活废弃物管理中心
guangzhou waste management center
生物废弃物
municipal biological waste
biowaste
bio-waste
北京市城市生活废物处理管理处
Beijing Department of Solid Waste Disposal
废物生物处理
bio-processing
biological waste treatment