趣英语 / impurities例句

impurities例句

Once its impurities had settled, the oil could be graded.
一旦杂质沉淀下去，油就可以分级了。

A filter will remove most impurities found in water.
过滤器会滤掉水中的大部分杂质。

Oil is refined to remove naturally occurring impurities.
油经过提炼去除天然存在的杂质。

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