美国机械工程师手册_26663_yn.pdf

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1、TABLEOFCONTENTSMEASURINGUNITSTHERMALENERGYORHEATMETRICSYSTEMSOFMEASUREMENT(Cont.)2514ThermometerScales2514AbsoluteTemperatureand2525MetricSystemAbsoluteZero2525MetricConversionFactors2514ThermalEnergy2531MetricandEnglishEquivalents2514Fahrenheit-CelsiusConversion253

2、1UseofConversionTables2515InterpolationFactors2532Ohm’sLaw2533BinaryMultiplesWEIGHTSANDMEASURES2533LinearMeasure2517MeasuresofLength2534DecimalsofanInchto2517Surveyor'sMeasureMillimeters2517NauticalMeasure2536MillimeterstoInches2517SquareMeasure2538FractionalInch251

3、7CubicMeasure2539MicroinchestoMicrometers2518ShippingMeasure2540MicrometerstoMicroinches2518DryMeasure2541FootMeterandMileKilometer2518LiquidMeasureConversion2518OldLiquidMeasure2541SquareMeasure2518Apothecaries'FluidMeasure2542SquareInchSquareCentimeter2518Avoirdup

4、oisorCommercialWeightConversion2518TroyWeight,usedforWeighing2542CubicMeasureGoldandSilver2543CubicFootCubicMeter2519Apothecaries'WeightConversion2519MeasuresofPressure2544AcreHectareConversion2519Miscellaneous2545GallonLiterConversion2546WeightMETRICSYSTEMSOF2546Po

5、undKilogramConversionMEASUREMENT2548PoundsperSquareInchKilopscalsConversion2520InternationalSystemofUnits2549PoundsperCubicInchGramsper2522FactorsandPrefixesCubicCentimeter2522StandardofLength2550Pounds-forcetoNewtons2522MeasuresofLengthConversion2523SquareMeasure25

6、51PowerandHeatEquivalents2523Surveyor'sSquareMeasure2553BritishThermalUnitJoule2523CubicMeasureConversion2523DryandLiquidMeasure2554GreekLettersandStandard2523MeasuresofWeightAbbreviations2554AbbreviationsforScientificandEngineeringTerms25132514THERMOMETERSTHERMALEN

7、ERGYORHEATThermometerScales.—Therearetwothermometerscalesingeneraluse:theFahrenheit(F),whichisusedintheUnitedStatesandinothercountriesstillusingtheEnglishsystemofunits,andtheCelsius(C)orCentigradeusedthroughouttherestoftheworld.IntheFahrenheitthermometer,thefreezing

8、pointofwaterismarkedat32degreesonthescaleandtheboilingpoint,atatmosphericpressure,at212degrees.Thedistancebetweenthesetwopointsisdividedin