Rabara ea tlhaho e na le elasticity e phahameng mocheso oa kamore, polasetiki e nyenyane, matla a matle a mochine, tahlehelo e tlaase ea hysteresis le mocheso o fokolang oa mocheso nakong ea ho senyeha ha makhetlo a mangata, kahoo e na le phetoho e ntle ea ho feto-fetoha ha maemo le ts'ebetso e ntle ea ho kenya motlakase ka lebaka la rabara e seng polar.
RSS3 ea rona ke e 'ngoe ea lihlahisoa tse ntle ka ho fetisisa tsa NR.Haeba o hloka NR, ka kopo ikopanye le rona ntle le ho qea-qea.