Cekeceke
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I-chains, uhlobo lwe-C55, C77, C72b, CC139, CC1300, MC133, H78b
Iikhonkco zenziwa zikhonkco zisebenzisa amakhonkco onxibelelwano kunye nobushushu obuphantsi. Ziyilelwe ngokucocekileyo kancinci okuvumela umxholo ukuba usebenze ngokulula kwindlela yokuphuma kwikhonkco. Iikhonkco zehlakele zisetyenziswa kwizicelo ezahlukeneyo ezifana nonyango lwe-logeres, ukonakaliswa kwamanzi, ukuphatha amanzi, ukuqhubekeka kweswekile, iinkuni zeswekile kunye neenkuni ezidlulayo. Zifumaneka ngokulula neziqhotyoshelweyo.