一个较难解释的英语句子-----------不是高手勿进

一个较难解释的英语句子-----------不是高手勿进
Street Ping Pong— Ping!
Do you like table tennis?If you had travelled to cities in the UK like London or Birmingham last summer,you might have seen one of the dozens of free tables that were there as part of a project called Ping!.
What is Ping!
Ping!is a three-year table tennis project.It has been running since 2010 and this year,2012,is the final year.The idea is to put free table tennis tables in eight different towns in the UK for four weeks during the summer.Each table comes with its own bats and balls and is free to play.You can find the tables outdoors.
已经给出文章,我只想让你们结合文章来回答.
解释破折号后Ping是怎么回事?如何翻译呢?这是什么用法,举例说明.用自己的话解释哦.