Two spacewalking astronauts have been able to install a new camera in the Hubble Space Telescope.At first, they had trouble removing the old camera because of a stubborn bolt.

 
  • 两名在空间行走的宇航员,现已可以在哈勃望远镜上安装新的摄像机,起初,因为一些不灵活的螺钉给去掉旧的摄像机造成困难。
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