... astrospectrograph天体摄谱仪 astrotracker星象跟踪仪 Astroturf阿斯特罗特夫耐纶草皮 ...
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在其星象跟踪仪出故障导致其自身再也不能准确计算出方位和坐标点之前，飞船整整工作了八年半。
The spacecraft worked for eight-and-a-half years before its star tracker failed and it could no-longer work out its position and point correctly.
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