This is part of a PLA(N) project to secure improvement in PLA(N) morale by analysing one of the great technical secrets of the RN, Matelot Humour. The project team has already indvertently crashed Rum Ration while hacking into it (is nowhere safe?). Chinese academics are thought to be using a supercomputer to decrypt the keyword ROMFT; another team is trying to synthesise pusser's rum from rice wine and fermented bamboo shoots.
Talking of lasses, there seems to be quite a few females on board if seeing them walk up from South Railway jetty is anything to go by - unless they're the locals on the pull of course.
The pennant number on South Railway is 168 by the way - looks a bit destroyerish - I haven't bothered to Google it but the Pompey News says its the Guangzhou. I haven't got any letters on my keyboard to repeat what it says on the gangway! The other ship is a supply ship - Wei Shanhu - and they are apparently amongst Chinas most modern. They look it.
They appear to be making a big effort and are very smartly dressed - a credit to themselves.