Latex公式太長，換行的兩種方式

latex中公式進行換行

\begin{equation}
\begin{aligned}
&Ttran_{i}^{j,j+1}=\frac{R_{bd_{j,j+1}}^{ij}}{AR_{bd_{j,j+1}}^{ij}}\times T_{ideal\_tran}^{ij},\\
&v,u \in \left [ 1,|E_{S}| \right ],j,j+1 \in \left [ 1,|sfc_{i}| \right ],i \in \left [ 1,|SC| \right ].\label{eq}
\end{aligned}
\end{equation}

\begin{equation}\label{eq:mti}
  \begin{split}
    Ttran_{i}^{j,j+1}=\frac{R_{bd_{j,j+1}}^{ij}}{AR_{bd_{j,j+1}}^{ij}}\times T_{ideal\_tran}^{ij},\\
    v,u \in \left [ 1,|E_{S}| \right ],\\
    j,j+1 \in \left [ 1,|sfc_{i}| \right ],i \in \left [ 1,|SC| \right ].
  \end{split}
\end{equation}