international horticultural exposition 2011 Xi'an China International horticultural exposition 2011 Xi'an China International Horticultural Exposition 2011 Xi'an China international horticultural exposition 2011, Xi'an International horticultural exposition 2006 Shenyang.China International horticultural exposition 2006 shenyang-China Ineternational horticultural exposition 2006 Shenyang·China Nternational horticultural exposition 2006 shenyang-China 大师园：2011西安世界园艺博览会：international horticultural exposition 2011 Xi'an China 全景世园：2011西安世界园艺博览会：international horticultural exposition 2011, Xi'an