| English | Chinese |
| sorting at source The classification and separation of solid waste, according to type, at the location where it is generated | 按源分类 (固体废气物在它所产生的位置根据类型分类和分离。) |
| waste sorting Separating waste into different materials, such as glass, metal, paper, plastic, etc. | 废料分类 (将废料分离成不同的材料，如玻璃、金属、纸张、塑料等。) |
| waste sorting unit Centralized recycling centres to which waste materials are brought and where they are separated | 废料分类单位 (废料被收集并分离的集中回收中心。) |