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\frac{\dot{m}\sqrt{R/\gamma}}{A_e}\left(\frac{\sqrt{\acute{T}_{0i,s}}}{\acute{P}_{0i,s}}\right)^{Mr_s}.\left(\frac{\sqrt{\acute{T}_{0i,h}}}{\acute{P}_{0i,h}}\right)^{Mr_h}=\\
\sigma .\cos{\beta_e}\acute{M_e} \times \left(1+\frac{\gamma-1}{2})(\acute{M}_e)^2\right)^{-\frac{(\gamma+1)}{2(\gamma-1)}}\\
\left[\left(1-\frac{U^2_i-U^2_e}{2C_p\acute{T_{0i,s}}}\right)^{Mr_s}.\left(1-\frac{U^2_i-U^2_e}{2C_p\acute{T_{0i,h}}}\right)^{Mr_h}\right]^{-\frac{(\gamma+1)}{2(\gamma-1)}}
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