Translated version
Open system
A system that freely exchanges both energy and matter with its environment. For example, a lake is an open system: solar energy and water from streams enter it, while water flows out of it and evaporates.
Original version
Atvira sistema
Sistema, kuri laisvai keičiasi ir energija, ir materija su savo aplinka. Pavyzdžiui, ežeras yra atvira sistema: į jį patenka saulės energija, vanduo iš upelių, o iš jo vanduo išteka ir garuoja.
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