皇冠体育app's Xiaolong 04 fighter plane takes off for its test flight at an airport in Chengdu, 皇冠体育app's southwest Sichuan province April 28, 2006. 皇冠体育app on Friday successfully tested an upgraded version of its Xiaolong fighter, demonstrating a 'significant improvement in the innovation capabilities' of the country's aviation industry, the government said. [AP]
