close-up shot of microbiologist looking at a petri dish with bacteria through light - 生物膜 個影片檔及 b 捲影像00:17
close-up shot of microbiologist looking at a petri dish with bacteria through light - 生物膜 個影片檔及 b 捲影像00:14
close-up shot of microbiologist looking at a petri dish with bacteria through light - 生物膜 個影片檔及 b 捲影像00:09
plaque-forming bacteria, coloured scanning electron micrograph (sem). dental plaque is a biofilm of bacteria that forms on teeth. - 生物膜 個影片檔及 b 捲影像00:22
beautiful woman using oral irrigator to clean her teeth in a bathroom looking at camera with window in the background - 生物膜 個影片檔及 b 捲影像00:14
close-up profile of female holding dental water jet in a bathroom cleaning her teeth with window in the background - 生物膜 個影片檔及 b 捲影像00:09
