Crude oil, or unprocessed petroleum, is called sour when it contains a lot of sulfur, and an impurity.

原油，或称为“未被加工的石油”，当其含有大量硫磺这一杂质时，被叫做“高硫原油”。

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Crude oil, or unprocessed petroleum, is called sour when it contains a lot of sulfur, and an impurity.

原油，或称为“未被加工的石油”，当其含有大量硫磺这一杂质时，被叫做“高硫原油”。

youdao