Singabavelisi be-nitrogen ye-nitrogen eTshayina, ebandakanyeka ekuboneleleni ngezixhobo ezisemgangathweni eziphezulu kunye nenxalenye yokuphumla ngenkqubo yokulawula i-PLC. Nceda uzive ukhululekile ukuthenga i-nitrogen ye-nitrogen ekwinqanaba lokukhuphisana kumzi-mveliso wethu. Nxibelelana nathi ngenkonzo eyenziwe ngokwezifiso.
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