Ukuduma kwemifino eyenziwe ngaphambilini kulethe namathuba amasha emakethe yokupakisha ukudla. Imifino evamile epakishwe ngaphambilini ihlanganisa ukupakishwa kwe-vacuum, okufakwe emzimbeni, ukupakishwa kwe-atmosphere elungisiwe, ukupakishwa okusemathinini, njll. Kusukela ku-B-end kuya ku-C-end, pref...
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