A spectrograph device can use the near-infrared light bouncing off an apple to show evidence of damage . The ultraviolet light can show contaminants .
摄谱仪设备可以使用近红外光检测出有损伤的苹果,而紫外线可以显示出污染物。
The space telescope imaging spectrograph , repaired in may , offers details on chemical elements dispatched from eta carinae .
望远镜成像光谱仪的空间,5月修理,提供从船底座伊塔星派出化学元素的细节。
The spectrograph will also be used to investigate the structure and composition of matter concentrated in the " cosmic web " - long , narrow filaments of galaxies and intergalactic gas separated by huge voids .