get volume ; cube ; cubature ; cubage
简单一点吧,还是求体积。
尽管求体积很有趣,但那不是所有要做的。
Because finding volumes is fun but that is not all there is to life.
一种考虑这个问题的办法是,如果你还觉得,二重积分是求体积的话,那这个度量的,就是函数1的图形下的体积。
One way to think about it, if you're really still attached to the idea of double integral as a volume what this measures is the volume below the graph of a function one.
And then we can take the derivative with respect to temperature, it's just R over molar volume minus b.
这样我们求,压强对温度的偏导数,结果等于R除以摩尔体积V杠减去b的差。
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