sprengel pump
Noun
Meaning
A form of air pump in which exhaustion is produced by a stream of mercury running down a narrow tube, in the manner of an aspirator; -- named from the inventor.
Source: Webster's dictionaryNoun
A form of air pump in which exhaustion is produced by a stream of mercury running down a narrow tube, in the manner of an aspirator; -- named from the inventor.
Source: Webster's dictionary