joseph von fraunhofer demonstrating his invention, the spectroscope, after richard wimmer, victorian art 19th century - 光譜儀 幅插畫檔、美工圖案、卡通及圖標科學家, 19世紀風格, 科學
this is a close-up view of the arm on nasa's mars 2003 rover that contains several of the scientific instruments. - 光譜儀 幅插畫檔、美工圖案、卡通及圖標
history, spectroscope, an optical instrument used to split light into its component wavelengths vintage illustration 19th century - 光譜儀 幅插畫檔、美工圖案、卡通及圖標
meyerstein's spectrometer was a historical direct-vision spectrometer designed by the instrument maker meyerstein in the mid-19th century - 光譜儀 幅插畫檔、美工圖案、卡通及圖標三稜鏡
history, spectroscope, an optical instrument used to split light into its component wavelengths vintage illustration 19th century - 光譜儀 幅插畫檔、美工圖案、卡通及圖標
