Qhov saum npoo ntawm lub taub hau yog khov
Qhov saum npoo ntawm luam ntawv taub hau ntawm UV ntawv luam tawm yog flimsy.it yuav tsum muaj kev tiv thaiv zoo heev thiab tsis tuaj yeem raug kov tau. Qhov saum npoo ntawm taub hau yog ib txheej ntawm cov ntawv txhuas. Qhov chaw nyob yog panted nrog siv lead ua oscillator thiab cov cim me me tube.it concave lossis deform txawm tawg yog tias nws kov tau. qhov teeb meem ntawd, lub taub hau poob siab.
