Zida zogwiritsa ntchito pansi (GET) ndi zida zapadera zomwe zimalola makina kukumba, kubowola kapena kung'amba pansi mosavuta.Kawirikawiri, amapangidwa ndi kuponyera kapena kupangira.Zida zapamwamba kwambiri zomwe zimagwira ntchito pansi zimachita kusiyana kwakukulu pamakina anu.Zamisiri zimatengera kupangidwa kwapadera kwazinthu, njira zopangira ndi chithandizo cha kutentha kuti zitsimikizire kuti ziwalo zathu za GET zimakhala zolimba komanso zolimba, kuti tipange zinthu zamoyo wautali.