meyerstein's spectrometer was a historical direct-vision spectrometer designed by the instrument maker meyerstein in the mid-19th century - 電子顯微鏡 幅插畫檔、美工圖案、卡通及圖標三稜鏡
antique illustration of spectroscopy light mirror reflection lens optical experiment - 電子顯微鏡 幅插畫檔、美工圖案、卡通及圖標