nkhani

The mkulu-square sifter mu mphero ufa ayenera kuyambika mu mkhalidwe static kwathunthu, apo ayi, izo zidzachititsa resonance chodabwitsa cha utali wozungulira lalikulu, chifukwa cha kuwonongeka;
Panthawi yogwira ntchito, thupi la sieve liyenera kukhala lokhazikika, lopanda kugwedezeka ndi phokoso lachilendo;
Kutalika kwa miyendo ya sieve yapamwamba iyenera kukhala yocheperapo ndipo sayenera kuthyoledwa;
Yang'anani kuchuluka ndi mtundu wa zida pamalo aliwonse kuti mufufuze kusalingana kwa zinthu zomwe zikubwera, kusefa mosasalala, kusefa mopitilira muyeso, kutayikira kwa zowonera, ndi kutsekeka kwa zida;
Njira yotchinga ikatsekedwa, msewuwo uyenera kudulidwa kaye, ndipo chotulukacho chiyenera kuchotsedwa.Ndizoletsedwa kugunda bokosi lazenera.Pamene kutsekeka kuli kwakukulu, kuyenera kutsekedwa;
Pamene kusefa sikuli koyera, chifukwa chake chiyenera kupezedwa ndikuchizidwa mu nthawi;
The flat screener ayenera kuyang'ana mfundo za ufa nthawi iliyonse, ndipo nthawiyo sikuyenera kukhala yotalikirapo kuposa maola awiri, lembani mbiri;ufa wosayenerera ubwezedwe ku sieve zina zomwe zili mu dongosolo kuti ziwunikidwenso.