Imishini yokupaka ephakamisa mpo iphakanyiswa uhlelo lokuphakamisa bese ihanjiswa eceleni kwayo isithwali ukuze sipake imoto ezintweni zokupaka ezinhlangothini zombili ze-shaft.Iqukethe uhlaka lwesakhiwo sensimbi, isistimu yokuphakamisa, isithwali, idivayisi yokubulala, okokusebenza kokufinyelela, i-sys yokulawula...
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