在北京的西郊，坐落着一个鲜为人知的航天“城堡”，那就是中国航天医学工程研究所。这是中国太空人培训基地．也是世界上第三座大规模的航天城。 进入航天城，首先进入的是一间四面封闭的房子。地中央的一张转椅格外引人注目。这张转椅不但可以做１８０度顺时针和逆时针的快速 In the western suburbs of Beijing, there is a little-known aerospace “castle”, which is China Aerospace Medical Engineering Institute. This is a Chinese astronaut training base. Is the world’s third large-scale space city. Into the space city, the first to enter is a closed house on all sides. A swivel chair to the center of the country is particularly attractive. This swivel chair not only can do 180 degrees clockwise and counterclockwise fast