GR Field Equation with Cosmological Constant

Which part of

R_{μ ν} - \frac{1}{2} R g_{μ ν} + Λ g_{μ ν} = \frac{8 π G}{c^{4}} T_{μ ν}

The Einstein field equations, with the cosmological constant Λ, relating spacetime curvature to energy and momentum.

don't you understand