International market oil price keeps running under high price level, the price margin of inferior crude oil and high-quality crude oil increases.
国际原油持续在高价位下运行，劣质原油与优质原油的价差拉大。
International market oil price keeps running under high price level, the price margin of inferior crude oil and high-quality crude oil increases.
国际原油持续在高价位下运行，劣质原油与优质原油的价差拉大。
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