单词 | electron-acoustic microscopy |
释义 | electron-acoustic microscopy [i`lek´trän ǝ`küs·tik mī`kräs·kǝ·pē] PHYSICS A technique for producing images that show variations in an object's thermal and elastic properties; an electron beam generates ultrasonic waves in the specimen which are detected by a piezoelectric transducer whose output controls the brightness of a spot sweeping a cathode-ray tube in synchronism with the electron beam. |
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