| 单词 | infrasound |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔infrasound〕Such a disturbance is what physicists call infrasound — sound pitched too low to be heard by the human ear.这种干扰就是物理学家所说的“次声”,即音频低于人类听觉范围的声音。英汉大词典 |
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