Tsebisa: Nakong ena ea tsoelo-pele e potlakileng ea theknoloji, tlhokahalo ea liboto tse hatisitsoeng tsa potoloho (PCBs) e ntse e eketseha. Li-PCB tsena tse tenyetsehang li fana ka melemo e mengata ho feta liboto tse thata, li li etsa hore li sebelisoe haholo liindastering tse fapaneng ho kenyeletsoa sefofane, likoloi, lisebelisoa tsa elektroniki tsa bareki, ...
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