Countries have been doing carrier aviation for almost a hundred years so there is no secret to the theory. All it takes is practice, and the Chines have been doing it for four years. The question is how are they on night air operations?
And how will they do when the ship has been fighting for a couple of weeks, machinery is being pushed to the limit, and the crew is starting to get tired? Building the machine, and being able to perform the proper operation functions in a demonstration environment are one thing. Being able to keep everything going when you’ve been on general quarters for days and the equipment isn’t “admiral’s inspection” clean anymore, is a whole different ball of wax.