Working Fluid
The working fluid can be of any composition and the system may be single phase (liquid only or gas only) or dual phase (liquid/gas).
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Famous quotes containing the words working and/or fluid:
“... in the working class, the process of building a family, of making a living for it, of nurturing and maintaining the individuals in it “costs worlds of pain.””
—Lillian Breslow Rubin (b. 1924)
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