I take wheat and yeast tablets daily to purify the blood.

我每天服用小麦酵母片来净化血液。

《柯林斯英汉双解大词典》

It can also help to purify the water quality, reduce pollution and improve environment.

荷花还可净化水质、减少污染、改善环境。

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We purify the water we drink with a water filter designed for the astronauts' use in space.

我们用滤水器净化饮用水，而滤水器是专为航天员在太空中使用而设计的。

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Breaking down electronics into small parts for refiners to melt and purify is another part of the business.

VOA: special.2010.11.01

What if I collect that blood from patients that are already infected with Hepatitis B, purify the Hepatitis B protein, and inject that back into people?

如果我采集那些乙肝患者的血液,抽提出乙肝病毒的蛋白质,并且将其回注入人体内,将会如何呢

耶鲁公开课 - 生物医学工程探索课程节选

One can also purify parts of the protein, that is, parts of the virus, that is, "Do I really need to deliver the whole virus?"

人们还可以纯化部分蛋白质,也就是病毒的某些部分来制造疫苗,那么还需要接种完整的病毒吗

耶鲁公开课 - 生物医学工程探索课程节选

China said the raids were carried out in an effort to "purify the network environment".

BBC: China cracks down on web criminals

Scientists inactivate the virus with formaldehyde and purify the liquid of cellular debris.

FORBES: Broken Eggs

Ocean water pours through a series of pipes into rows of reverse osmosis filters which purify the water.

NPR: California Town Votes on Huge Desalinization Plant