closed up image of some red and green liquid in separate glass bins, high angle view, differential focus - 量筒 個照片及圖片檔
closed up image of two different-colored oils, one in a measuring cylinder, one in a beaker, high angle view - 量筒 個照片及圖片檔
closed up image of some dark green-colored oil in a measuring cylinder, high angle view, differential focus - 量筒 個照片及圖片檔
goggles and laboratory equipments on desk, high angle view, close up, white background, differential focus - 量筒 個照片及圖片檔
flask with liquid set over burner, front view, toned image, blue background, differential focus - 量筒 個照片及圖片檔
laboratory bottles and graduated cylinders, front view, toned image, blue background, soft focus, defocused - 量筒 個照片及圖片檔
glasses and laboratory equipments on desk, high angle view, close up, white background, differential focus - 量筒 個照片及圖片檔
laboratory bottles and graduated cylinders, close up, white background, differential focus - 量筒 個照片及圖片檔
female scientist dropping liquids into a test tube with pipette, rear view, differential focus - 量筒 個照片及圖片檔
female scientist talking with another scientist sitting in front of a microscope, front view, rear view - 量筒 個照片及圖片檔