He invented the ultramicroscope in 1903, and two types of membrane filters in 1918 and 1922.
1903年
明了超显微镜，1918和1922年又
别明了两种滤膜。
词条纠错
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ultramicroscope
n. 超显微镜
名 词: ultramicroscopy
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ultra-microphotography, ultramicropipet, ultramicropore, ultramicrorespirometer, ultramicrosampling, ultramicroscope, ultramicroscopic, ultramicroscopical, ultramicroscopy, ultramicrosome,
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