iron lung

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌiron ˈlung noun [countable]  a large machine with a metal case used to help people to breathe 铁肺；人工呼吸器

Examples from the Corpus

iron lung• In my imagination and nightmares I have done time in an iron lung.• Better had I been traveling with an iron lung.• She went quickly; by afternoon, she was in the iron lung and she died the next morning.• The iron lung encased Virginia in a vacuum.

ˌiron ˈlung nounChineseSyllable  

with a people Corpus a metal case used help to large machine

iron lung
ˌiron ˈlung noun [countable]
a large machine with a metal case used to help people to breathe