Definitions for ecological systems, closed

This page provides all possible meanings and translations of the word ecological systems, closed

U.S. National Library of Medicine

  1. Ecological Systems, Closed

    Systems that provide for the maintenance of life in an isolated living chamber through reutilization of the material available, in particular, by means of a cycle wherein exhaled carbon dioxide, urine, and other waste matter are converted chemically or by photosynthesis into oxygen, water, and food. (NASA Thesaurus, 1988)


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