With a name like "bolognium," I assume it was supposed to be baloney.
Anyway, the labelling is redundant. It's obvious just by looking at those struts, with their telescopic structure and round bearings at the bases, that they're designed to compress and change their angles. There's no other reason for them to be designed that way.
I always sort of imagined they were there to imply the possibility that maybe the neck parts of Klingon ships could raise or lower, a bit like Concorde's nose, perhaps for landing (though when they did start landing BoPs in TVH, it didn't move)