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to phrases
замкнутая экологическая система
stresses
gen.
封闭的生态系统
ecol.
封闭生态系统
;
密闭生态系统
tech.
闭合生态系统
;
密封生态学系统
замкнутая экологическая система:
2 phrases
in 1 subject
Astronautics
2
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