Pambuyo poumba, zinthu zophikidwa pang'ono zimatengedwa ndi mkono wotumizira ndikuyikidwa pa thireyi yachitsulo. Chotengera cha unyolo chimanyamula thireyi kupita nayo ku uvuni wouma komwe chinyezi chidzasungunuka ndi mphepo yotentha yozungulira. Chifukwa chake njira yowumitsa ndi imodzi mwa njira zofunika kwambiri popanga thireyi ya dzira. Ndi kumbuyo kwa njira youmba.
Choumitsira njerwa cha makina otayira mazira, chomwe chimatchedwanso choumitsira chachikhalidwe, komanso choumitsira cha lamba wonyamula katundu
Makina opangira thireyi ya mazira okhala ndi mphamvu zosiyanasiyana, ofanana ndi kutalika kosiyana kwa chowumitsira njerwa.
Choumitsira njerwa chimagwiritsa ntchito malasha, dizilo, gasi wachilengedwe, ndi LPG ngati mafuta
Kugwiritsa ntchito choumitsira thireyi ya mazira popanga, kupulumutsa antchito ndi kuonjezera kuchuluka kwa ntchito.
Ndi zaka zoposa 25 zaukadaulo wopanga ma thermal dyring line. Tapanga ma dying line pogwiritsa ntchito ukadaulo wa ma patent. Ndi amphamvu kwambiri, amagwiritsa ntchito mphamvu zochepa, kapangidwe kake ndi kokongola.
Kukula kwa mzere wouma kumatengera mphamvu ya zinthu zopangidwa ndi mapepala.
| Thireyi ya dzira | Thireyi ya dzira yodzaza 20,30,40… thireyi ya dzira la quail |
| Katoni ya dzira | Makatoni a dzira okwana 6, 10, 12, 15, 18, 24 odzaza… |
| Zinthu zaulimi | Thireyi ya zipatso, chikho chobzala mbewu |
| Chosungira chikho | 2, 4 makapu a salver |
| Zogulitsa Zachipatala Zotayidwa | Chidebe chogona, chotsukira mkodzo, chokodzera chachikazi… |
| mapaketi | Mtengo wa nsapato, phukusi la mafakitale… |