The article focuses on quantity analysis, discussion of using constant quantity instrument to do semimicro chemical analysis experiment.

本文围绕定量分析实验中，利用常量仪器进行半微量化学分析进行探讨。

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In zero pressure gradient flow, this local momentum loss is Minost an additive constant quantity. On the other hand, adverse pressure gradient results in amplification of this momentum loss.

在零压力梯度下，这个局部的动量损失几乎是一个附加的常量，而逆压梯度则会扩大这种动量损失。

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And that implies that since the quantity we want is given by this quantity, which is zero times a constant, the quantity we want is also zero.

因为我们需要的量，是由这个量乘以一个常数，因为这个量是零，因此我们需要的量也是零。

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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

Then we can take the derivative of that quantity, when we vary the temperature, holding the volume constant.

即恒定体积，改变温度，这里恒定温度下。

麻省理工公开课 - 热力学与动力学课程节选

And that implies that since the quantity we want is given by this quantity, which is zero times a constant, the quantity we want is also zero.

因为我们需要的量,是由这个量乘以一个常数，因为这个量是零，因此我们需要的量也是零。

麻省理工公开课 - 热力学与动力学课程节选

With work dominating our lives in so many ways and with the constant expectations to produce a quantity of quality results, it only makes sense that we should be having fun along the way.

FORBES: Fun, Fun, Fun - Millennials Want To Have Fun At Work

No legislator has ever overturned the law of demand, which says that when the price of labor rises, the quantity demanded will fall (assuming other things are constant).

FORBES: The Minimum Wage Delusion, And The Death Of Common Sense