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1、常用单位换算公式大全面积体积长度质量密度力温度压力热功功率速度(UnitconversionformulaDaquanareavolumelengthmassdensitytemperatureandpressureforcethermalpowerspeed)UnitconversionformulaDaquanareavolumelengthmassdensitytemperatureandpressureforcethermalpowerspeedAreaconversion1sqkm(km2),二100ha(HA),=247.1a
2、cres(acre),二0.386squaremiles(mile2)1squaremeters(M2)二10.764squarefeet(ft2)1squareinches(in2)二6.452squarecentimeters(cm2)1hectares(HA),二10000squaremeters(M2),二2.471acres(acre)1acres(acre),=0.4047ha(HA),=4.047*10-3km2(km2),=4047squaremeters(M2)1acres(acre),=0.4047ha(HA),=4.
3、047*10~3km2(km2),二4047squaremeters(M2)1squarefeet(ft2)二0.093squaremeters(M2)1squaremeters(M2)二10.764squarefeet(ft2)1squareyards(yd2)二0.8361squaremeters(M2)1squaremiles(mile2)二2.590squarekilometers(km2)Volumeconversion1GI,=0.118litres(1),1pints(PT),=0.473litres(1)1quarts(Q
4、T)=0.946liters(1),1Gal(Gal)=3.785liters(1)1barrels(BBL)二0.159cubicmeters(M3),=42Americangallons(Gal),1acresfeet二1234cubicmeters(M3)1cubicinches(in3)=16.3871cubiccentimeters(cm3),1Britishgallons(Gal),=4.546liters(1)1billioncubicfeet(BCF)=2831.7millioncubicmeters(M3),1trill
5、ioncubicfeet(TCF),=283・17billioncubicmeters(M3)1millioncubicfeet(MMcf)二28thousandand317cubicmeters(M3),1thousandcubicfeet(MCF)=28.317cubicmeters(M3)1cubicfeet(FT3)=0.0283cubicmeters(M3)=28.317liters(liter)1cubicmeters(M3)=1000liters(liter)=35.315cubicfeet(FT3)=6.29barrels
6、(BBL)Lengthconversion1km(km),=0.621m订es(mile),1meters(m),=3.281feet(FT),二1.094yards(YD)1cm(CM)二0.394inches(in)1inches(in)二2.54cm(CM)1nauticalmiles(nmile)=1.852(km)at1km(FM)=1.829(m)1yards(YD),=3ft(FT),1bar(RAD)=16.5ft(FT)1miles(mile)二1.609km(km),1feet(FT)=12inches(in)1mil
7、es(mile),=5280feet(FT),1nauticalmiles(nmile),二1.1516miles(mile)Massconversion1long(longton)=1.016tons(T)1kg(kg)=2.205pounds(LB)1pounds(LBkg)=0.454(kg)[](oz)1ozavdp=28.350grams(g)1shorttons(sh.ton)=0.907(T)=2000pounds(LB)1tonsof(T)=1000kg(kg)=2205(LB)二].102poundsshorttonlo
8、ngton二0.984(sh・ton)(longton)Densityconversion1lb/ft3(lb/ft3)=16.02kg/M3(kg/m3)API二131.5proportio
