Lab scientists can reconstruct simple black-and-white images the subject is viewing by analyzing the blood flow in the brain's visual cortex.

通过分析大脑视觉皮层的血液流动，实验室的科学家能就重组实验对象见到的简单黑白图像。

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Because we can't yet take measurements from real black holes, we need a way to recreate this phenomenon in the lab in order to study it, to validate it.

由于我们还无法测量到真实的黑洞，就需要在实验室中重新创造出这种现象，从而进行研究，进而加以验证。

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When we entered the classroom, Angela went to sit at a black-topped lab table exactly like the ones I was used to.

我们走进教室以后，安吉拉坐到一张黑色台面的实验桌后，这种实验桌和我原来用过的一样。

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One by one, with our camera rolling, the 4-year-old black lab goes to five separate areas, which Dostie believes are the site of old graves.

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Training a puppy can be difficult, so I make sure I have a lot of tasty treats available to reward my one year old, 65 Lb. black lab, B.

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But on a sunny Saturday in September of 1999, a little black lab mutt with a crooked jaw licked and jumped his way into our hearts and escaped a very different end.

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