Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun basic pumping unit consisting of two
positive displacement pumps designed todispense two components at a precisely controlledratio .
Etymologies
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Examples
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DYNATERRE 03, same as 01.6 M, plus a pulverizer, a vibrating sifter and a binder proportioner.
Chapter 19 1988
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I checked the front proportioner valve o ring and it seems fine.
We Blog A Lot 2009
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