Preferred Term:
closed loop systems
Definition:
An ecological or industrial system in which energy and material are conserved.
Concept Schemes:
NALT Full
Broader Concept:
Entry Terms:
- closed systems
URI:
https://lod.nal.usda.gov/nalt/199649
Download this Concept:
RDF/XMLCreated 2013-05-29, last modified 2015-02-09