That signal is carried here, for example, by the concentration of second messengers - the concentration of something else.

这里这个信号由,第二信使的浓度,即另一种物质的浓度来传递

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They move from regions of high concentration to regions of low concentration by this natural flow down a concentration gradient.

从高浓度区域,向低浓度区域流动,顺浓度梯度流动

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But when the concentration in the alloy is 50/50 by mole, something magical happens.

但是当合金中的浓度,是1比1的时候，有些神奇的事发生了。

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