Lub positioner feem ntau yog tsim los ntawm lub rooj ua haujlwm, lub tshuab slewing, lub tshuab tig, cov khoom siv hluav taws xob, lub thav duab thiab lub thawv hluav taws xob.Lub positioner yog ib qho tshwj xeeb vuam auxiliary khoom, uas yog haum rau vuam txoj hauj lwm ntawm slewing ua hauj lwm kom tau cov txheej txheem zoo tagnrho ...
Nyeem ntxiv