利用慢转速拍摄，萤光显微镜和电子显微照片观察巨噬细胞的活动。原版英文发音。
An illustration through time-lapse film light microscope slide and electron micrograph of the activities of macrophages.
锗还用作合金组分、萤光灯的磷光粉和作照相机广角镜头和显微镜物镜等光学玻璃组分。
It is also used as a component of alloys, in phosphors for fluorescent lamps, and in the glasses of certain optical components, such as camera and microscope lenses.
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