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Icebo lokucoca ulwelo
Amacebo okucoca ulwelo aqokelela izinto ezingcolisayo (ubukhulu becala uthuli) oluvela emoyeni ukukhusela ungcoliseko lwenkqubo kwaye zisetyenziswa phakathi kwekomityi yokutsala kunye nejeneretha yokufunxa (okanye ivelufa yokufunxa). Izinto eziza kufakwa ngaphakathi ziya kufakwa kwizibuko leemoto, i-suction port (okanye i-port ye-exhaust) yevalve yokufunxa kunye ne-exhaust port yokupompoza.