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No TPTP formula. May not be expressible in strict first order. engineering.kif 737-737 Fluid power device is a subclass of engineering component
No TPTP formula. May not be expressible in strict first order. engineering.kif 907-907 Fluid cylinder is a subclass of fluid power device
No TPTP formula. May not be expressible in strict first order. engineering.kif 913-913 Valve is a subclass of fluid power device
No TPTP formula. May not be expressible in strict first order. engineering.kif 932-932 Faucet is a subclass of fluid power device


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