Mphamvu yamagetsi ya UPS imatha kuthetsa mavuto a gridi yamagetsi monga kulephera kwamagetsi, kugunda kwamphezi, kuthamanga, kuthamanga kwafupipafupi, kusintha kwadzidzidzi kwamagetsi, kusinthasintha kwamagetsi, kuthamanga kwafupipafupi, kutsika kwamagetsi, kusokoneza kwamagetsi, ndi zina zotero, ndi zipangizo zamakono zamakono sizilola mphamvu kusokonezedwa...
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