File:14Siemens EV9-4.jpg

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600×600 (231 KB)Fuenacly5 (Talk | contribs) (Probe used in the ultrasonic detection is the use of piezoelectric effect materials to achieve energy , acoustic energy is converted transducer . The probe is a key component of the wafer , the wafer is a single crystal having a piezoelectric effect or po)
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