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.
The plugs in plug valves have one or more hollow passageways going sideways through the plug, so that fluid can flow through the plug when the valve is open. Plug valves are simple and often economical. When the plug is conically tapered, the stem/handle is typically attached to the larger diameter end of the plug.