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athchúrsáil ar iarmhar
environ.
残留物回收
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。
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