Three astronauts left the orbiting Tiangong-1 space module on Tuesday morning after a 12-day stay.
China will take bigger steps in space exploration in pursuit of its space dream, President Xi said during a video call with the astronauts on the Shenzhou X.
H7N9 avian influenza, which was first reported in humans in China this year, has a lower fatality risk than H5N1-type bird flu that emerged in 2003, researchers said on Monday.
The Shenzhou X spacecraft completed a manual docking with the orbiting Tiangong-1 space module on Sunday, the last docking maneuver before China's manned space program enters the space lab stage.
Three astronauts aboard the Shenzhou-10 spacecraft re-entered the orbiting Tiangong-1 space module after completing a manual docking procedure on Sunday.
Shenzhou X manned spacecraft blasted off on June 12 from Jiuquan Satellite Launch Center, which is also home to scientists, soldiers and their families.
A demonstration project was launched on Friday in the Yangtze River Delta for China's Beidou satellite navigation system, which will provide precise navigation, positioning and time services to the nation's richest region.
China's national aircraft exporter is seeking to expand its market share by selling more advanced planes to foreign clients,said an executive from the company.
Astronaut Wang Yaping wowed millions of students on Thursday when she held China's first science lesson from space.Space teachers exchange letter
After wrapping up her first lecture in space on Thursday, Chinese astronaut Wang Yaping replied to a letter from former US astronaut Barbara Morgan.
A special lecture began Thursday morning, given by a teacher aboard China's space module Tiangong-1 to students on Earth.
More than 60 million students and teachers at China's 80,000 middle schools will experience a special class delivered by China's first teacher in space.