Isiqephu Esikhangelako
Izimpawu zokubhala ezinamandla ngonyaka zonke izihlanga lokusebenza, zikhona ngezintengo zindwendwe zezinhlobo zeziscrreni, ezifundekayo ukuthi zibheke umthetho omkhulu wokubhala. Iziscrreni ziziphiqintshisiwe ngamaxesha amahle, futhi zikhishwe ngendlela yokuqinisekisa ngokukho imigomo emahlulekileyo ukuze kuhlola inkabi yokulima, bheka ukubhala okungaphezulu nokuhlola kwehlakalo. Iziscrreni zingabhedlisele ngasemva kwezindlela ezidingekileyo ngaphandle kokufakelwa kwesicatshulwa esidingekileyo, futhi kuhlonophwe ukuthi kunezinye izinhlobo zokubhala, ngakho ke i-flexibility ngokushesha lokubhala. Ngakho ke, izintengo eziphumaphumeleleyo ezininzi nezingeni lokusebenza, njengesi-electroformed scrrensi, zikhupha isenzo sokuqhathaniswa sokubhala we-rotary ngokuba zisetyenziswa ukwenza ukwakhiwa kwezinto ezimbili, ezinkanako nokubhala okungaphezulu.