et

heli

1

Terminological databases

Rahvatervishoiu sõnastik

ID 608321 Last modified 21.09.2023
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  • keskkonnas lainena leviv võnkliikumine
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  • Eristatakse infraheli (sagedus vähem kui 16 Hz), inimkõrvaga kuuldav heli (16 Hz-20 kHz), ultraheli (20 kHz – 1 GHz) ja hüperheli (üle 1 GHz). Heli levimiskiirus on toatemperatuuril õhus 332 m/s, vees 1490 m/s.

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Inflection Type 17

heli helid
heli helide
heli helisid

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