Kev paub

thaum magnetic flux hloov

thaum magnetic flux hloov

pom qhov chaw magnetic

pom qhov chaw magnetic

uas pom cov khoom ua rau

uas pom cov khoom ua rau

qhov twg dej pom qhov zoo tshaj plaws

qhov twg dej pom qhov zoo tshaj plaws

cov khoom siv lim dej twg ua rau cov dej haus zoo tshaj plaws

cov khoom siv lim dej twg ua rau cov dej haus zoo tshaj plaws

uas dej pom qhov system tshem tawm cov kab mob feem ntau

uas dej pom qhov system tshem tawm cov kab mob feem ntau

leej twg nrhiav pom

leej twg nrhiav pom

leej twg invented filtration

leej twg invented filtration

leej twg nrhiav tau magnetic teb

leej twg nrhiav tau magnetic teb