life support
noun
mass noun
1- Medicine maintenance of vital functions following disablement or in an adverse environment【医】生命维持, 致残后（或在艰难环境中）生命机能的维持：
as modifier a life-support machine.维持生命的机器。
1.1
- informal equipment in a hospital used for this〈非正式〉医院里用于维持生命的器械：
a patient on life support.
依靠器械维持生命的病人。