Ground crew members clean a plane at the Shanghai Hongqiao Airport prior to 2014 Asian Business Aviation Conference & Exhibition, or ABACE 2014, which is set to kick off in Shanghai on April 15. About 40 jets will be on display during the three-day event, with more than 20 manufacturers, including Boeing Co and Airbus Group, from around the world taking part in the exhibition. It is the third consecutive year that the city is organizing the event. The exhibition will be held for two more years. [Photo / Xinhua]