Because of this, it's difficult to uncontaminated samples.
因此，很难采到未受污染的样品。
They always enter fresh, uncontaminated solutions and wash tanks.
它们都能使用新鲜的未经污染的溶液和水洗盆。
There is no culture uncontaminated by contact with the outside world.
不存在什么在与外界接触后依然不受污染的文化。
It's hard for an ordinary person to remain uncontaminated after years in official circles.
一个平常人在官场里呆久了，想要涅而不缁，是很难的。
The diagnosis is dependent on the collection and analysis of an uncontaminated urine specimen.
这个诊断是依据收集和分析无受污染得尿液标本。
Emotional and transparent image of mountain streams uncontaminated streams, lively and smooth.
情绪透明的的像山涧中未经污染的小溪，欢快而流畅。
As it does so, the Conservatives uncontaminated impotence may become more an asset than a liability.
实际上，保守派不可救药的无能也许成了一种资产而非债务。
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