And that explains why, in an effort to revive this delicious fruit's image, producers now market them under another name.

这就是为什么制造商为了振兴这个美味水果的形象，会想换一个名称来打开市场。

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Why is this surprising? We'll see that when we zoom into the image?

为什么这是令人惊讶的呢？

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This natural-color satellite image of the summit of Mauna Loa overlaid with 100-meter (330-foot) contour lines helps illustrate why volcanic emissions from the summit rarely reach the observatory.

上图带有间隔100米等高线的天然色卫星照片显示的是莫纳罗亚山峰顶，它可以告诉我们为什么峰顶的火山喷发极少触及到气象站。

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That said, the image could help explain why others might have had difficulty identifying the existence and motives of this terrorist cell.

CNN: A new plague

This refraction eliminates both the red end of the spectrum (red light is not bent enough by the air layer to form part of the second image) and the blue frequencies (which are scattered away: this selective scattering is why the sky is blue).

ECONOMIST: In a flash