| 单词 | ultrasonic transducer |
| 释义 | ultrasonic transducer [¦ǝl·trǝ`sän·ik tranz`dü·sǝr] ENGINEERING ACOUSTICS A transducer that converts alternating-current energy above 20 kilohertz to mechanical vibrations of the same frequency; it is generally either magnetostrictive or piezoelectric. |
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