検索結果- ポルトガル語(ポルトガル、ブラジル) - 英語

infra-som

noun

Superseded spelling of infrassom (superseded by the Orthographic Agreement of 1990. Still used in countries where the agreement hasn’t come into effect; may occur as a sporadic misspelling.)

Infrasound is a form of sound that is below the limit of human hearing.

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