Coal kev lag luam uas tsis muaj ceev ncaj qha tsav peb theem ruaj khov hlau nplaum synchronous lub cev muaj zog rau siv conveyor

Cov khoom no yog ib qho tshwj xeeb qis-ceev ncaj tsav lub cev muaj zog tsim los ntawm peb lub tuam txhab rau siab thiab tsis tshua muaj siab siv conveyors.Nws tau raug xa mus rau cov neeg siv khoom siv thiab tau txais cov lus pom zoo.