Lub tshuab thauj khoom hlau ua rau nws yooj yim rau upload cov khoom siv raw rau lub tshuab txiav laser fiber xws li qauvU3 daim ntawv hlau laser txiav.

Nws txiav cov hlau thiab rub tawm cov khoom.

Zoo heev txhim kho koj cov khoom tsim tau zoo