A is for Antimatter Containment Pod.
B is for Baristatic Filters.
C is for Coolant Conduits.
D is for Dilitium crystal converter assembly.
E is for Exoatmospheric radiation shielding.
F is for Flux Spectrometer.
G is for gravimetric torpedo.
H is for Heisenberg compensator.
I is for Isolinear coprocessor.
J is for Jefferies tubes.
K is for the K-Level indicator on Starfleet sickbay biobed readouts.
L is for Luna
-class starship, the dedicated long-range, multi-species exploration class of the U.S.S. Titan
K is for "Kling-uns;" how one or two characters pronounced the name in the classic TOS series.
L is for Lateral Sensor Array.