Ahh ... so simply a wrong designation !
Google has updated the image, more facilities and piping...
Forget that picture. That is photoshoped with in mind.They seem to have the same shape at the bow?
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You are looking at the deck on one hand, and the hull on the other.
I suspect there are two types of catapult being installed. The one on the left is steam, the one on the right being EMALS. The earlier photo on 2015-09-06 showed four big and one small modules in the right one. The left one has four modules and one wider squared section to the top side. I guess the four big modules in the right one are energy storage modules just like US. EMALS has four of them. The left tranch is narrower because it only has the steam pipes. The structures on the leftmost side could be the steam storage and control for steam catapult.Google has updated the image, more facilities and piping...