Ultrasonic flowmeter

Ultrasonic flowmeter
Kev siv ntau yam, tsis tas yuav tawg cov kav dej, tsis tas yuav tsum nres ntau lawm, kev ntsuas lub sijhawm tiag tiag, nrog kev teeb tsa yooj yim thiab kev ua haujlwm, thiab kev ntsuas kev ua tau zoo. Muaj ob hom khoom, ib hom, cais hom, tuaj yeem xaiv raws li kev ua haujlwm, feem ntau yog siv hauv kev lag luam tu khoom, khoom noj, tshuaj, luam ntawv thiab dyeing, khoom siv tshuaj lom neeg thiab lwm yam.