1. A, no te whiriwhiri i te contactor, me whakaaro te taiao mahi, me te whakaaro nga take e whai ake nei.①Me whakamahia te kaiwhakataki AC ki te whakahaere i te kawenga AC, me whakamahi te kaiwhakataki DC mo te kawenga DC ② Ko te waa mahi o te whakapiri matua kia nui...
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