代码:
\begin{align}
&&\dot{Q}{\mathrm{rad}}\
&=&\varepsilon \sigma A\left(T{\mathrm{s}}^{4}-T_{\mathrm{surr}}^{4}\right)\
&=&\frac{\varepsilon \sigma\left(T_{\mathrm{s}}^{2}-T_{\mathrm{surr}}^{2}\right)}{T_{\mathrm{s}}-T_{\infty}} A\left(T_{\mathrm{s}}-T_{\infty}\right)
\end{align}
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\begin{align}
{} & \dot{Q}_{\mathrm{rad}}\ \\
{} = {} & \varepsilon \sigma A\left(T_{\mathrm{s}}^{4}-T_{\mathrm{surr}}^{4}\right)\ \\
{} = {} & \frac{\varepsilon \sigma\left(T_{\mathrm{s}}^{2}-T_{\mathrm{surr}}^{2}\right)}{T_{\mathrm{s}}-T_{\infty}} A\left(T_{\mathrm{s}}-T_{\infty}\right) \\
\end{align}
这样嘛?
2 个赞
学到了,我弄半天,之前靠"~"打空格