| 单词 | sound meter |
| 释义 | > as lemmassound meter sound meter n. an instrument for measuring the intensity of sound. ΘΚΠ the world > matter > physics > science of sound > [noun] > instrument measuring intensity radiometer1905 Rayleigh disc1913 sound meter1928 1928 Sci. Abstr. A. 31 39 Discusses the differences between physical and physiological intensity of sound and describes a form of sound meter for technical use. 1974 Physics Bull. Oct. 481/2 Dawe Instruments..has introduced the type 1400H sound~meter which uses a ceramic microphone... Sound levels as low as 24 dB can be measured. < as lemmas |
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