I may be just a tiny cell, but I'm a part of this whole body.

我只是一个微小的细胞，但是我是整体的一部分。

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When an insect brushes against them, this triggers a tiny electric charge, which travels down tunnels in the leaf and opens up pores in the tear's cell membranes.

当一只昆虫与它们擦身而过时，就会触发一种微小的电荷，电荷沿着树叶里的隧道向下移动，并打开泪液细胞膜上的小孔。

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The technology relies on a tiny computer chip, embedded in each cell phone, which communicates with a reader-device at stores, train stations and vending machines for cashless payments.

这项技术依赖于嵌入在每个手机中的微型计算机芯片，它可以与商店、火车站和自动售货机中的读取器进行无现金支付。

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They carry a potential, that is, if you could - if you had a tiny, tiny electrical meter, you could one put one electrode on one side of the cell membrane, on the extracellular side and one on the intracellular side and measure, you would measure a potential difference; just like a battery you would measure a potential difference.

它们带有电势,就是说,如果你能有一个足够小的电位计,可以把一个电极放在细胞膜一侧,假设放在细胞外的一侧,另一个电极放在细胞内侧并测量,你能测到一个电势差,就像电池那样能测到电势差

耶鲁公开课 - 生物医学工程探索课程节选

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