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Pronunciation Guide
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Listen to native speakers pronounce “crewe” in real conversational contexts with synchronized timestamps and subtitles.
And by varying the intensity of the electron beam, you could vary the brightness of the screen, giving you a black-and-white image.Crewe was inspired to design a similar electron beam for the TEM that would scan across the nanoscopic sample.So instead of creating an imprint of the whole sample at once, Crewe's electron beam made smaller imprints, mapping the sample out bit by bit.