the fact of somebody being on a life support machine （用机器设备）维持生命 Families want the right to refuse life support. 病人亲属要求有权拒绝使用机器维持生命。 🔊🔊 - on life support
She's critically ill, on life support. 她病情危急，靠机器来维持生命。 🔊🔊
Oxford Collocations DictionaryLife support is used before these nouns:- machine
- system