如果没有新的电池和陀螺仪，哈勃将失去动力并且无法指向正确的方向。
Without new batteries and new gyroscopes it would lose both the power and the ability to point in the right direction.
周五早晨，宇航员将要安装六台新的陀螺仪。陀螺仪有着至关重要的作用，因为它们将帮助望远镜指向正确的方向。
Astronauts on Friday morning will try to install six new gyroscopes, which are crucial because they help the telescope point in the right direction.
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