The extraction, production and disposal all happen outside our field of vision.
至于原料开采、产品制造和废弃处理等所有的过程，我们全都看不到。
It has reference value for drawing up disposal plan and putting into effect in field.
本文对治理方案的编制和现场实施具有参考价值。
It has reference value for drawing up disposal plan and putting into effect in field.
本文对治理方案的编制和现场实施具有参考价值。
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