infrasound
含义: Sound waves with a frequency below the lower limit of human hearing (typically below 20 hertz), produced by natural phenomena such as earthquakes, volcanic eruptions, and severe weather.
Infrasound is the acoustic counterpart to ultrasound, occupying the opposite end of the frequency spectrum. Though inaudible, infrasound can be physically felt as vibration and has been linked to feelings of unease, disorientation, and even reported ghost sightings. Natural sources include ocean waves, thunder, and animal communication — elephants and whales use infrasound to communicate over vast distances. It is monitored globally to detect nuclear tests.
例句
- The monitoring station detected infrasound waves consistent with a large volcanic eruption thousands of miles away. 监测站探测到与数千英里外一次大规模火山喷发一致的次声波。La estación de monitorización detectó ondas de infrasonido compatibles con una gran erupción volcánica a miles de kilómetros de distancia.監視ステーションは、数千マイル離れた大規模な火山噴火と一致する超低周波音を検出した。감시 기지는 수천 마일 떨어진 대규모 화산 폭발과 일치하는 초저주파음을 감지했다.
- Researchers proposed that infrasound generated by faulty ventilation systems might explain reports of haunted buildings. 研究人员提出,故障通风系统产生的次声波可能解释了某些'闹鬼'建筑的报告。Los investigadores plantearon que los infrasonidos generados por sistemas de ventilación defectuosos podrían explicar los informes de edificios encantados.研究者たちは、故障した換気システムが発生させる超低周波音が幽霊屋敷の目撃報告を説明しうると提唱した。연구자들은 고장 난 환기 시스템이 발생시키는 초저주파음이 유령 출몰 건물에 대한 목격담을 설명할 수 있다고 제안했다.
- Elephants communicate using infrasound at frequencies too low for the human ear, allowing messages to travel across the savannah. 大象利用频率低于人耳可闻范围的次声波进行交流,使信息能够穿越草原传播。Los elefantes se comunican mediante infrasonidos a frecuencias demasiado bajas para el oído humano, lo que permite que los mensajes recorran la sabana.ゾウは人間の耳では捉えられないほど低い周波数の超低周波音を使ってコミュニケーションをとり、サバンナを越えて情報を伝えている。코끼리는 인간의 귀로는 감지할 수 없을 만큼 낮은 주파수의 초저주파음을 사용하여 소통하며, 사바나를 가로질러 메시지를 전달한다.
发音
用法指南
语境: academic, professional
语气: neutral
起源与历史
From Latin infra- (below) + sonus (sound). Coined in the mid-20th century as scientific instruments became capable of detecting and measuring very low frequency sound waves.
文化背景
Era: Modern
Generation: All ages
Social background: Universal
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