1 Kev Taw Qhia Ib tus contactor yog ib qho khoom siv hluav taws xob tswj tau siv los ua lossis tawg AC thiab DC lub ntsiab thiab tswj circuits.Lub cim KM, uas nws lub ntsiab tswj cov khoom yog lub cev muaj zog, kuj tuaj yeem siv rau lwm yam khoom siv hluav taws xob, xws li hluav taws xob cua sov, tshuab vuam, thiab lwm yam 2. Lub dif...
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