the solving process of the d'alembert's differential equation using fourier's triple integral transform method

and mass will be double or triple integral, depending on how many dimensions you have, dv of whatever density function you have, da or dv.

计算质量可看成二重或三重积分，这取决于空间维数，取决于密度函数，dA还是。

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the divergence theorem tells me this is also equal to the triple integral, d, of div f dv.

散度定理告诉我们，这个也等于，的三重积分。

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you've got more curves than a triple integral.

你比三次积分的函数都更有曲线。

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this is just your standard triple integral over a region in space.

这就是空间区域中的标准三重积分。

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second, it gives the certification of the definite integral inequality and the way to calculate the triple integral.

其次，给出了一个定积分不等式的证明与三重积分计算的方法。

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so, the right-hand side of this equality, so that's the triple integral, let's start computing it.

等式的右边是一个三重积分，我们先来计算它。

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that's equal to the triple integral over the region inside.

这等价于在这个区域内部的三重积分。

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so, just to recap, we've got a formula for the triple integral of r sub z dv.

简单地重复一下吧，我们已经得到了Rz，dv的三重积分。

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so, what i got is that the triple integral over d of div f dv equals this derivative.

在D上的三重积分，等于这个导数。

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this paper points out the variable substitution method of triple integral of elliptical volume and examples its applications.

指出了椭球形区域上三重积分的一科变量替换方法，并说明了其应用。

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it's just the same way that you would compute any other triple integral.

这和计算其他三重积分的方法是相同的。

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if you were in four-dimensional space it would be a triple integral.

如果是在4维空间中，通量就表现为三重积分。

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certificate of patent of invention of china

中国发明专利证书

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certificate of patent for invention

发明专利证书

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patenting, issue the certificate of patent, register and announced

授予专利权，颁发专利证书，登记和公告

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the certificate of patent right transfer, if any, should also be provided.

有专利权转让证明的，应同时提供证明。

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setting out from pnls~+e and introducing a slow-time scale, we obtain the matrix form for a linear operator.

由微扰的自散焦非线性薛定谔方程出发，引入慢变时间尺度，我们获得矩阵形式的线性算符；

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then, through solving the slow time-scale problem by optimal control theory, the optimal reduced-order reference trajectory is obtained.

然后，应用最优控制理论得出慢时间尺度上的解，并将其作为降维后的最优参考轨迹；

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biological activated carbon filtration and slow sand filtration are used to study the rural potable water treatment.

采用生物活性炭滤-砂慢滤工艺对农村饮水处理进行了试验研究。

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after unremitting endeavors for many years, by 2005, our city has basically solved the difficult problem for rural potable water.

经过多年的不懈努力，到2005年我市已基本解决农村饮水困难的问题，农村饮水的工程重点已经转向饮水安全问题。

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