Optimal Density Rau Suab & Lub Zog

Lub suab-absorbing vaj huam sib luag yog tsim los ntawm kev tshawb fawb pom tseeb, uas tsis yog tsuas yog ua kom lub suab zoo nqus tau zoo xwb tab sis kuj lav qhov muaj zog txaus. Qhov no ua tiav qhov kev sib npaug zoo ntawm kev ua haujlwm acoustic thiab thauj khoom - bearing stability, ua rau lawv ruaj khov thiab ruaj khov.