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[Subject: Technology (Applied Sciences)]
- Óäëèí¸ííàÿ ïîäâèæíàÿ äåòàëü, ïëîòíî äâèãàþùàÿñÿ âíóòðè öèëèíäðà è íàãíåòàþùàÿ èëè âûêà÷èâàþùàÿ æèäêîñòü, ãàç, ïàð.
Translated by: JULIA RAILEAN
Translated in 23 languages