deletions | additions       diff --git a/section_begin_enumerate_item_item__.tex b/section_begin_enumerate_item_item__.tex  index ec93e16..3e6abfd 100644  --- a/section_begin_enumerate_item_item__.tex  +++ b/section_begin_enumerate_item_item__.tex 
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\begin{equation}  \begin{aligned}  \rho &= \rho(T,s) \\  \frac{dT}{dt} = \nabla_{h} \cdot (\chi_{h} \nabla_{h} T) + \frac{\partial}{\partial z}  \left(\chi_z \frac{\partial T}{\partial z}\right) \end{aligned}  \end{equation}