A detector of sound or other compressional waves.
| 单词 | θ130024 |
| 释义 | the mind > attention and judgement > discovery > instrument for detection > [noun] > system investigating sea, atmosphere, etc. > device used in (4) receiver1920 A detector of sound or other compressional waves. radio sounder1931 an instrument used for radio sounding, such as a radiosonde or ionosonde. side-scanner1968 A device using side-scan sonar or radar. Subcategories:— use of (1) |
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