Dee ihe na-aga n'ihu maka paragraf a - A na-akọwapụta ihe nrụpụta nke usoro nchekwa "n'ụzọ doro anya" na-enye ihe nchekwa nchekwa "na-agafe agafe" n'oge ọnọdụ ọdịda akọwapụtara na ọnọdụ ọrụ "niile" dị ka nchekwa nchekwa maka ọnọdụ ọdịda ahụ. Otú ọ dị, ọtụtụ mmiri-mma na -moderated reactors, mgbe scrammed, ike wepụ mmapụta mmepụta na ire ere okpomọkụ enweghị ma usoro okpomọkụ nyefe ma ọ bụ na-arụsi ọrụ ike jụrụ usoro. N'ikwu ya n'ụzọ ọzọ, ọ bụ ezie na usoro nnyefe okpomọkụ dị nchebe na-enye ihe nchekwa nchekwa na-egbochi oke ọkụ mgbe onye na-arụ ọrụ na-arụ ọrụ, otu usoro nnyefe okpomọkụ dị nchebe "anaghị" enye ihe nchekwa nchekwa ma ọ bụrụ na a kwụsịrị onye na-arụ ọrụ (SCRAMed). Ihe mberede ahụ mere n'Agwaetiti Three Mile
kpughere adịghị ike imewe a: a kwụsịrị ihe ọkụkụ na igwe na-emepụta uzuoku ma na-efunahụ mmiri jụrụ oyi ọ ka na-enwe ọkara agbaze.