If you have a quantity which is constant over any closed path, that quantity is a thermodynamics state function.

如果有一个物理量，对任何闭合回路积分是常数，这个物理量就是一个热力学态函数。

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And by then people were just happy to have a decent quantity of food in their kitchens.

那时候，只要厨房里有足够的食物，人们就很高兴了。

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In order to relate turning these physical knobs to this quantity, which we don't have a very good feel for, we've got to have a feel for the slopes.

为了把这些物理量同我们不是很理解的这个量联系起来，我们必须对斜率有一定的了解。

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If you have a quantity which is constant over any closed path, that quantity is a thermodynamics state function.

如果有一个物理量,对任何闭合回路积分是常数，这个物理量就是一个热力学态函数。

麻省理工公开课 - 热力学与动力学课程节选

In other words, we're taking advantage of the fact that we now know that quantity. In the case of the ideal gas we just have a simple model for it.

换句话说，我们可以利用我们已经,了解这个物理量的这个优势,对理想气体我们有一个简单的模型。

麻省理工公开课 - 热力学与动力学课程节选

All those things have to happen in an orderly fashion, in enough quantity in order for a particular cell to make a protein.

所有的步骤必须按部就班,保质保量地进行,让一个特定的细胞合成特定的蛋白质

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Israel assesses that Iran will have a sufficient quantity of enriched uranium to make a nuclear bomb by the end of the year.

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Notably, also on Wednesday, the US-based International Institute for Strategic Studies released a report concluding that Iran will have a sufficient quantity of highly enriched uranium to make an atomic bomb in a matter of months.

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Someone would have to eat a large quantity of those foods for it to become toxic.

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