现行道路交通条例清楚地规定了酒精浓度的上限。

The present Road Traffic Ordinance states clearly that the limit of alcohol concentration.

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随着温室气体浓度的下降，地球开始再次变冷，最终又将回到冰河时代。

Gradually as the concentration of greenhouse gases goes down, Earth starts to cool again, and eventually you slip back into an Ice Age.

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来自海豹死亡海域的海水样本确实含有异常高浓度的有毒细菌。

Seawater samples from the area where the seals died did contain unusually high concentrations of the toxic bacterium.

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For example, sodium in our blood plasma is almost to the point sometimes of 100 millimol or that's very, very concentrated.

比如，钠在我们的血浆中的浓度,有时几乎达到了一百毫克分子,或者说非常非常浓。

麻省理工公开课 - 化学原理课程节选

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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I just come back with my black coffee and my double espresso mocha latte skinny frothed, except it isn't espresso.

我回到桌位上，双手拿着我的黑咖啡,和一杯双倍浓度无咖啡因少泡沫的穆哈咖啡，其实不是无咖啡因的。

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