Lub thawv thauj khoom uas yog siv rau pwm thauj thiab cov pwm hloov thaum tsim khoom.

Lub Pwm Transcless Transport hloov chaw tuaj yeem txav mus los tom ntej thiab rov qab, thiab tuaj yeem tig thaum taug kev tsis muaj qhov chaw nres tsheb.