a device lowered into a well to produce a fluid-tight seal

listen to the pronunciation of a device lowered into a well to produce a fluid-tight seal
Английский Язык - Английский Язык

Определение a device lowered into a well to produce a fluid-tight seal в Английский Язык Английский Язык словарь

A device lowered into a well to produce a fluid-tight seal
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