
ULTRASONICS - HYDROPHONES - PART 2: CALIBRATION FOR ULTRASONIC FIELDS UP TO 40 MHZ (IEC 62127-2:2007/A2:2017)
出版:European Committee for Standards - Electrical

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ULTRASONICS - HYDROPHONES - PART 2: CALIBRATION FOR ULTRASONIC FIELDS UP TO 40 MHZ (IEC 62127-2:2007/A2:2017)
出版:European Committee for Standards - Electrical
专家解读视频