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twin-screw pump

noun
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Definition of twin-screw pump

: a displacement pump consisting of a casing containing two parallel screws with intermeshing threads fitted to prevent backward movement of fluid

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“Twin-screw pump.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/twin-screw%20pump. Accessed 29 January 2020.

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