
In human spaceflight, a life support system is a group of devices that allow a human being to survive in space. US government space agency NASA, and private spaceflight companies use the term environmental control and life support system or the acronym ECLSS when describing these systems for their human spaceflight missions.{sfn|Barry|2000} The li...
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http://en.wikipedia.org/wiki/Life_support_system

any mechanical device that enables a person to live and usually work in an environment such as outer space or underwater in which he could not ...
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http://www.britannica.com/eb/a-z/l/48

[
n] - equipment that makes life possible in otherwise deadly environmental conditions 2. [n] - medical equipment that assists or replaces important bodily functions and so enables a patient to live who otherwise might not survive
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http://www.webdictionary.co.uk/definition.php?query=life-support%20system
life support noun medical equipment that assists or replaces important bodily functions and so enables a patient to live who otherwise might not survive; `the patient is on life support`
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https://www.encyclo.co.uk/local/20974
No exact match found.