鉄てつの肺はいてつのはいMeanings1nouniron lungA medical device that assists breathing by creating negative pressure around the chest, historically used for polio patients.ポリオの流りゅう行こう時じ、鉄てつの肺はいは多おおくの命いのちを救すくった。During the polio epidemic, the iron lung saved many lives.
