計量單位與換算公式

計量單位與換算公式[回電子表格]常數(shù)與換算地球赤道半徑=6378.39km地球兩極半徑=6356.91km地球旋轉(zhuǎn)角速度Ω=7.292*105s-1重力g45=980.616cms**(-2)太陽常數(shù)=1.96lymin**(-1)水分子量mw=18.016gmol**(-1)干空氣氣體常數(shù)=2.8704*10**6ergg**(-1)K**(-1)干空氣平均分子量m=28.966gmol**(-1)干空氣定壓比熱cp=7R/2=0.240calg**(-1)K**(-1)干空氣定容比熱cv=5R/2=0.171calg**(-1)K**(-1)Stefan-Boltzmannconstant=8.132*10**(-11)lyK**(-4)min**(-1)緯度平行于赤道，1度約111公里，經(jīng)度因為在兩極相會，故自赤道處之1度約111公里漸向兩極縮為0公里，在臺北(北緯24度)附近，1經(jīng)度約為101公里。兩點間之距離公式列如下：[電子表格]兩點間距離D(x1,y1,x2,y2)=r*acos(sin(x1)*sin(x2)+cos(x1)*cos(x2)*cos(y1-y2))x,y是緯度，經(jīng)度的弧度單位，r是地球半徑在同經(jīng)度上時D=r*|x1-x2|

氣壓：1atmospherepressure=1013.25hPa=760.00mmofmercury(Hg)=29.921inches(Hg)≒14.7lb/sq.inch速度：1m/s=1.94knots=2.24miles/hr=3.28ft/s=3.60km/hr長度：1浬nauticalmile=1.150776哩mile=6076呎feet=1852公尺meter=6100臺尺=72913吋inch重量：1臺斤=0.6公斤kilogram=1.2市斤=1.3227磅pound=21.16434英兩ounce面積：1公頃=100公畝=10000平方公尺sq.meter=2.471英畝acre=1.0310甲=3025坪=10.31分容積：1立方公尺cubicmeter=1公秉=1000公升liter=219.98加侖gallon(UK)=264.171gallon(USA)熱量：1calorie=4.187*10**7ergs

太陽輻射單位換算--近紫外線(約0.3-0.4μ)至近紅外線(約3~4μ)間之波長積算量：1MJ?m-2=23.9cal?cm-2=0.278kw?h?m-2強度：1cal?cm-2?min-1=0.698kw?m-21kw?m-2=1.431cal?cm-2?min-11J=1w?s1ly=1cal?cm-2=0.0428MJ?m-2IPS(InternationalPyrheliometricScale)-1956觀測值=Smithsonian觀測值×0.98WRR(WorldRadiometricReference)觀測值=IPS-1956觀測值×1.022(CWB測報作業(yè)規(guī)范)

長度(英美制)Lengths*1foot(ft.)=12inches(in.)1yard(yd)=3feet1rod=5.5yards1fathom=6feet1furlong=40rods=1/8mile1mile(mi.)=1760yards=5280feet1nauticalmile=1.15miles=6076.1feet1landleague=3miles1marineleague=3nauticalmiles

重量(英美制)Weights*AvoirdupoisMeasures1grain=0.0648grams(g)1ounce(oz.)=437.5grains1pound(lb.)=16ounces1ton=2000pounds1longton=2240poundsTroyMeasures1grain=0.0648grams(g)1carat=3.086grains=0.2grams1pennyweight=24grains1troyounce=480grains1troypound=12troyouncesApothecaryMeasures1grain=0.0648grams(g)1scruple=20grains1dram=3scruples1apothecaryounce=8drams1apothecarypound=12apothecaryounces體積Volumes*液體計量LiquidMeasures

1tablespoon(tbsporT)=3teaspoons(tsport)1fluidounce(floz)=2tablespoons=1.805in31cup(c)=8fl.oz.1pint(pt)=16fl.oz.=28.88in31quart(qt)=2pints=57.75in31gallon(gal)=4quarts1barrelofpetroleum=42gal.1barrelofliquid=31gal.固體計量DryMeasures

1in3=16.387cm31ft3=(12in)3=1728in31yd3=(3ft)3=27ft31drypint(pt)=33.60in31dryquart(qt)=2drypints=67.2in31peck=8dryquarts1bushel=4pecks1cord=128ft3SI(Metric)Prefixes*SmallValuesLargeValuesPrefixAbbreviationValuePrefixAbbreviationValue分(十分)Decid10-1十Decada101厘(百分)Centic10-2百Hectoh102毫Millim10-3千Kilok103微Microμ(ppm)10-6百萬分百萬MegaM106奈(極微)Nanon(ppb)10-9十億分吉(十億)GigaG109皮(微微)Picop10-12兆分兆TeraT1012飛Femtof10-15拍Peta(京:1016)P1015阿Attoa10-18艾ExaZ1018介Zeptoz10-21皆ZettaE1021攸Yoctoy10-24佑YottaY1024

其它：中國古稱垓秭穰溝澗正載極10201024102810321036104010441048

參考名稱：恒河沙阿僧祇那由他不可思議無量大數(shù)105210561060106410681072

換算*英制->公制1inch=2.540cm1foot=0.3048m1yard=0.9144m1mile=1.6093km1pound=0.4536kg1fl.oz.=29.574milliliters1qt=0.9464liters1gal=3.785liters公制->英制1cm=0.3937in.1m=3.28feet1m=1.094yards1km=0.6214mi.1kg=2.205pounds1milliliter=0.03381fl.oz.1liter=1.057qt.1liter=0.2642gal.

溫度Temperature

理想氣體狀態(tài)方程EquationofStateofanIdealGaspV=mRTifp=1013.25mb,V=22.415*10**3cm**3,T=273.16゜KR*=mR=univers