考虑一类非守恒形式的对流扩散边值问题。

In this paper, we consider a nonconservative convection-diffusion boundary value problem.

youdao

采用了体积守恒形式的连续性方程，以防止由于气液两相密度差大而引起的数值求解中的不收敛现象。

The continuum equation with conserved volume type was used to avoid divergence because of the big difference in density between gas and liquid.

youdao

这就为研究激光的工作人员出了一个难题：如果能量输出有两种形式，他们怎样运用电荷守恒和能量守恒定律呢？

This posed a conundrum for researchers working with the laser: How were they to apply the laws of conservation of charge and conservation of energy with two forms of energy output?

youdao

Energy is conserved in all of its forms.

能量在其任何形式都是守恒的。

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