The China Conservation and Research Center for the Giant Panda (CCRCGP) is located in the Wolong Nature Reserve. For over 20 years the organization has worked for the preservation of the panda population and has now resolved three key problems of breeding which restricted reproduction of the panda for a long time.
Plug-ins were invented to work around the limitations of early HTML and deliver more interactive content. A plug-in is an additional piece of software that specializes in processing particular types of content. For example, users may download and install a plug-in like Adobe Flash Player to view a web page which contains a video or an interactive game.
Hot Plug is a little tougher. Hot Plug typically means that you can add a new FRU (a disk drive in our example), but you can not remove the FRU without taking some sort of outage. I say that Hot Plug is tougher in the sense that you need to be careful and not interpret Hot Plug as having Hot Swap capability. Hope this helps.