Complex sentence: Two boiler compartments, each with three boilers, were situated underneath the forward funnel, with a turbine compartment for the wing shafts immediately aft and this arrangement was repeated for the two center shafts.
Split into simpler sentences: Two boiler compartments, each with three boilers, were situated underneath the forward funnel, with a turbine compartment for the wing shafts immediately aft. This arrangement was repeated for the two center shafts.