Two spacewalking astronauts have been able to install a new camera in the Hubble Space Telescope.
两名
行走
宇航员已经可以给哈勃望
镜安装新摄像机了。
步Two spacewalking astronauts have been able to install a new camera in the Hubble Space Telescope.
两名行走宇航员已经可以给哈勃望镜安装新摄像机了。
Spacewalking astronauts installed an 88-million-dollar spectrograph designed to detect faint light from faraway quasar .
步宇航员安装8．8千万美元光谱仪，用于探测来自遥
体微弱光线。
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