Unlikely. On other similar ships in the PLAN before, they are panels which may either move to expose certain things (such as inflatable lifeboat pods if the ship needs to be ditched, or for RHIBs if a ship has them in that position on the outside), or could also move for other things like slant launch missile exhausts.
For the rectangular panel near the bow, we can see it is at the same position as the pole used for replenishment, so probably the panel is movable to expose the deck at that level for replenishment.