Nta:Cov ntaub ntawv bobbin tuaj yeem yog yas, hlau, hlau nplaum lossis lwm yam khoom siv pecified.Rau winding, nws tuaj yeem hloov kho los ntawm cov neeg siv khoom.

Daim ntawv thov:Wiggler, Kev Ruaj Ntseg, Computer hard disk, Aviation, Fais fab mov, tsheb tswb, Wireless nas, Fais txhuam hniav, Leakage hloov khoom siv hluav taws xob, thiab lwm yam