Sitolo iliyonse yogulitsa zinthu iyenera kulengeza, zomwe ndizofunikira, koma tiyenerabe kuweruza mfundo zambiri zokopa anthu mwanzeru. Mwachitsanzo, mawu otchuka akuti "kutseka chitseko" amatanthauza kuti kalekale si asayansi kwenikweni. Nthawi zambiri tikamalankhula za galimoto, nthawi zambiri chitseko chimachotsedwa kuti chinene zinazake, chinthu chaching'onochi chiyenera kulankhula, koma kuti tiwone momwe tingalankhulire, sichingalankhule molakwika.
Pali mitundu iwiri ya ziwalo zomwe zimalumikiza chitseko ndi thupi, chimodzi chimatchedwa hinge, china chimatchedwa limiter, monga momwe dzinalo likusonyezera, chimodzi ndi chokhazikika, china ndi kuchepetsa ngodya yotsegulira chitseko, tiyeni tiyambe ndi hinge. Hinge nthawi zambiri imatchedwa hinge, pali mitundu iwiri yodziwika pamsika pakadali pano, stamping ndi casting, mitundu yambiri yamitundu yaku Germany ndi kapangidwe ka hinge. Chifukwa kapangidwe ka kapangidwe kake ndi kosiyana, kotero mitundu iwiri ya makulidwe a hinge si yofanana, hinge zotayidwa nthawi zambiri zimakhala zokhuthala kwambiri kuposa hinge zotayidwa.
Ma hinge opangidwa ndi pulasitiki ali ndi ubwino wochita zinthu molondola komanso mogwirizana, mwachidule, ndi ofooka komanso akuluakulu, chifukwa cha kapangidwe kake, mphamvu yonyamula katundu ilinso ndi ubwino, koma kulemera kwake ndi kwakukulu, mtengo wopangira udzakhala wapamwamba; Mtengo wopangira ma hinge opangidwa ndi pulasitiki udzakhala wotsika, ndipo sipadzakhala kuchepa kwa magalimoto abanja, omwe angakwaniritse zosowa zawo mokwanira.
