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1.The refining process is crucial for the quality of the oil.
精炼过程对于油的质量至关重要。
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2.The refinery produces a wide range of petroleum products.
炼油厂生产各种石油产品。
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3. The refining process involves removing impurities from crude oil to produce refined oil.
精炼过程涉及从原油中去除杂质以生产精炼油。