Complex sentence: Nor was the Mk-17 the'largest US bomb ever stockpiled, the EC 16 was a few inches longer, and weighed, with the specialize equipment necessary to top off it's liquid deuterium to the target, 36 tons.
Split into simpler sentences: Nor was the Mk-17 the' largest US bomb ever stockpiled. The EC 16 was a few inches longer, and the specialized equipment necessary to top off its liquid deuterium brought its weight as a deployed weapon system to 36 tons.