infrasound
导读：infrasound读音音标
英 [\'ɪnfrəsaʊnd]美 [\'ɪnfrəˌsaʊnd]
infrasound意思解释
n.次声（风暴产生的低频音波）； 英英释义 InfrasoundInfrasound, sometimes referred to a
英 [\'ɪnfrəsaʊnd]美 [\'ɪnfrəˌsaʊnd]
infrasound意思解释
n.次声（风暴产生的低频音波）； 英英释义 InfrasoundInfrasound, sometimes referred to a
infrasound读音音标
英 [\'ɪnfrəsaʊnd]
美 [\'ɪnfrəˌsaʊnd]
infrasound意思解释
n.
次声（风暴产生的低频音波）；
英英释义
InfrasoundInfrasound, sometimes referred to as low-frequency sound, is sound that is lower in frequency than 20 Hz (Hertz) or cycles per second, the \"normal\"limit of human hearing. Hearing becomes gradually less sensitive as frequency decreases, so for humans to perceive infrasound, the sound pressure must be sufficiently high.
