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Meaning of primary life support system | Babel Free

Noun CEFR C2

Definitions

A backpack, worn on a space suit, that provides breathable oxygen and removes expelled carbon dioxide

CEFR level

C2

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

primary market primary memory primary metabolite primary myelofibrosis primary offense primary phosphine