In other words, the order of taking the derivatives with respect to pressure and temperature doesn't matter And what this will show is that dS/dp dS/dp at constant temperature, here we saw how entropy varies with volume, this is going to show us how it varies with pressure.

换句话说,对温度和压强的求导顺序无关紧要,结果会表明,恒定温度下的，对应我们上面看到的，熵如何随着体积变化，这个式子告诉我们，熵如何随着压强变化。

麻省理工公开课 - 热力学与动力学课程节选

The statistics, which Google has been releasing since 2010, show the volume of government requests has continued to grow.

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On average, 20% of start-ups fail within their first year, according to the Ewing Marion Kauffman Foundation, which also conducts an annual study on entrepreneurial activity in the U.S. Its newest report, due out next month, is expected to show that start-up volume in the U.S. increased by just a few percentage points in 2011, just as it did in 2010, 2009 and 2008, says E.

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This supersedes a previous law, which limited the commercials to the loudest volume found in the accompanying show.

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