But when scientists started looking at the data overlaid onto a map, they saw dark spots of fuzz, indicating radio frequency interference.

但当科学家们开始将这些数据分布在地图上观察时，他们发现了一些模糊的黑点，表示无线电频率的扰动。

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According to the X-ray I had all dark spots on the tips of my lungs and the doctor thought that I must have suffered from pleurisy at one time.

根据X光照结果，我的肺尖全都是黑斑，医生认为我曾患有胸膜炎。

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Since plants had not yet evolved 700 million years ago, the dirty ice could have been the only dark spots on Earth's surface to absorb the sun's rays.

7亿年前地球上还没有植物，浑浊的冰（泥土和冰的混合物）可能是地球表面唯一能够吸收阳光的黑色物质。

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The challenge is to pick out oil from other dark spots, such as shadows made by clouds or patches of seaweed.

VOA: standard.2010.07.05

Also, for no apparent reason, dark spots often appear to be accompanied by light spots.

ECONOMIST: Comparative meteorology

But look a little deeper at the numbers and you find dark spots.

FORBES: Behind the Unemployment Number

Another mystery concerns the behaviour of the dark spots.

ECONOMIST: Comparative meteorology