“ultrasonic transmitter”的概念、定义、翻译、参考文献-科学参考

单词	ultrasonic transmitter
释义	ultrasonic transmitter [¦ǝl·trǝ`sän·ik tranz`mid·ǝr] ^{ENGINEERING ACOUSTICS} A device used to track seals, fish, and other aquatic animals: the device is fastened to the outside of the animal or fed to it, and has a loudspeaker which is made to vibrate at an ultrasonic frequency, propagating ultrasonic waves through the water to a special microphone or hydrophone.
随便看	inshore current inshore zone inside caliper inside diameter inside face inside gage inside micrometer inside work insight therapy in situ in situ combustion in situ foaming insol insolation insoluble insoluble anode insoluble residue insomnia insomniac inspect inspection inspection by variables inspector inspiration inspiratory capacity

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