PUB DAWB LOS RAU TXHUA HOM khoom lag luam

qhov rooj nres

Kev faib tawm: zoo tib yam ruaj ruaj hlau nplaum qhov rooj sib cais tau muab faib ua phab ntsa mounted hom thiab pem teb mounted yam raws li cov txheej txheem installation, hom yas thiab hlau hom raws li cov khoom siv; hluav taws xob qhov rooj kaw tau muab faib ua ntau hom. Cov khoom lag luam txhim kho tau muab faib ua peb pawg: hom phab ntsa, hom av thiab saw hom. Raws li cov qauv sib txawv, phab ntsa hom electromagnetic qhov rooj nres tau muab faib ua hom qauv, hom nce siab, hom txuas ntxiv, kem hom, zais hom thiab ntev npab hom.


Lub sij hawm tshaj tawm: Sep-14-2020