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| Chinese | English |
| 残留物回收 | residue recycling Recycling of material or energy which is left over or wasted in industrial processes and other human activities. Examples include waste heat and gaseous pollutants from electricity generation, slag from metal-ore refining, and garbage. A residual becomes an output or input when a technological advance creates economic opportunities for the waste (回收在工业过程和其它人类活动中废弃或浪费的物质或能量。例如发电产生的无用的热量和污染的气体，金属矿石提炼中产生的矿渣和垃圾。随着技术进步，废料作为输入和输出也有了经济价值。) |