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单词 θ76713
释义
the world > matter > physics > science of sound > sound-waves > [noun] > instrument measuring number or pressure (4)
phonometer1823

An instrument for measuring or automatically recording the intensity of sound.

pistonphone1922

a device for producing known sound pressures by means of a vibrating piston whose motion is precisely measured, used mainly for calibrating…

probe microphone1945

a very small microphone which operates without significantly disturbing the sound waves as they pass, used esp. in making precise measurements of…

probe mike1976

= probe microphone n.

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更新时间:2024/12/24 20:17:14