3d structure of a melanoma cell derived by ion abrasion scanning electron microscopy. - 電子顯微鏡 幅插畫檔、美工圖案、卡通及圖標線粒體, 癌症, 細胞
joseph von fraunhofer demonstrating his invention, the spectroscope, after richard wimmer, victorian art 19th century - 電子顯微鏡 幅插畫檔、美工圖案、卡通及圖標科學家, 19世紀風格, 科學
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