| 单词 | acoustic |
| 释义 | acoustic adj. & n. --adj 1. relating to sound or the sense of hearing. 2. (of a musical instrument, gramophone, or recording) not having electrical amplification (acoustic guitar). 3. (of building materials) used for soundproofing or modifying sound. 4. Mil. (of a mine) that can be exploded by sound waves transmitted under water. --n 1. (usu. in pl.) the properties or qualities (esp. of a room or hall etc.) in transmitting sound (good acoustics; a poor acoustic). 2. (in pl.; usu. treated as sing.) the science of sound (acoustics is not widely taught). Phrases and idioms acoustic coupler Computing a modem which converts digital signals into audible signals and vice versa, so that the former can be transmitted and received over telephone lines. Derivatives acoustical adj. acoustically adv. Etymology: Gk akoustikos f. akouo hear |
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