(n.) A ring of packing or a special device to render gas-tight and water-tight the space between the tubing and bore of an oil well.
PACKER
Meaning of PACKER in English
Webster's English dictionary. Английский словарь Webster. 2012
(n.) A ring of packing or a special device to render gas-tight and water-tight the space between the tubing and bore of an oil well.
Webster's English dictionary. Английский словарь Webster. 2012