Ungcelele olungelulo
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I-JKLM engeyiyo eyombane yesomeleza emanzini yekhaya, ishishini, intengiso
Iimbonakalo
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. D: I-valves ezimbini ezinamatanki aphindwe kabini.1 Umsebenzi we-1 yokulinda; E: IiValves ezimbini kwaye ngaphezulu, ngokuhambelana ngokulandelelana
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(7) Yila ngencwadi yencwadana yokuvuselela ukuphinda unyanzelwe..
