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3 total sentences available.
This is because of the increased pulling power of the retro jet which would make manual retraction unduly laborious. A hydropump has therefore been fitted that is simply operated by a clutch lever giving variable speed of retraction.
Source: wiktionary
Professor N. K. Vereshchagin, a palaeontologist from Leningrad who joined the expedition, discovered the archaeological component at the site when using a hydropump to expose a bone-rich horizon of the "cemetery."
Source: wiktionary
An adequate Diesel engine has been selected which, via gearbox, drives hydropumps for machine operation and movement.
Source: wiktionary
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.