众所周知，谁是生命之源。而且地球上可利用的水资源是有限的。
It is known to us all that water is the source of life. And the available water resources on the earth are quite limited.
为了满足世界人口和高质量工业用水的要求，通常可利用的水资源都需要净化。
To supply the demand for the potable water for the world's population and high quality water for industry the available sources of water often need to be treated.
采油废水的资源化就是将原本废弃或排放的水经过相应处理成为可利用的水资源。
When we talk about recycle and reuse of oil extraction wastewater, we mean to make the original disusing or discharging wastewater become useful water resource after treated by some process.
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