Is that an up-to-date photo? I ask because I've seen a satellite image from yesterday showing the carrier still outside the dry dock. Also, other earlier images show the dry dock as already being occupied by a large civilian ship that's under construction.
I need to correct my post from yesterday - sorry for that - but as it seems by the video below (thanks to @Ivan Lan), the CV-17 'Shandong' is not in the drydock at Dalian shipyard, since this is occupied by a large civiil vessel.
By the way it gives a great comparison to the size of a Type 055 DDG.
(First image Via @仙居 from Weibo)