NASA的三架大型天文台——哈勃太空望远镜、斯皮策太空望远镜与钱德拉X射线天文台近日联合拍摄了一张银河中心区域的大型复合照片。
A giant composite image of the Milky Way's center has been taken by NASA's three Great Observatories - the Hubble and Spitzer Space Telescopes and the Chandra X-ray Observatory.
伦琴卫星是一只X射线望远镜，同时拥有由加强型碳纤维复合材料制成的镜子系统。
Rosat was an X-ray telescope mission and had a mirror system made of a reinforced carbon composite material.
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