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форва́куум m
gen.	forevacuum
scient.	low vacuum (133 Па - 0.1 МПа; 1 - 760 тор); rough vacuum (133 Па - 0.1 МПа; 1 - 760 тор)
tech.	rough exhaust; first-stage vacuum; initial vacuum

форвакуум : 2 phrases in 1 subject

Scientific

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