計(jì)量單位與換算式

1、計(jì)量單位與換算式作者:日期: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Q =7.292*105s-1重力 g45=980.616cm s*(-2)太陽常數(shù)=1.96ly min *(-1)水分子量 mw=18.016g mol*(-1)干空氣氣體常數(shù)=2.8704*10*6erg g*(-1) K*(-1)干空氣平均分子量m=28.966g mol*(-1)干空氣定壓比熱 cp=7R/2=0.240 cal g*(-1) K*(-1)干空氣定容比熱 cv=5R/2=0.171 cal g*(-1) K*(-1)Stefa n-Boltzma nn

2、con sta nt=8.132*10*(-11)ly K*(-4) min *(-1)緯度平行于赤道，1度約Ill公里，經(jīng)度因?yàn)樵趦蓸O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(diǎn)間之距離公式列如下：電子表格兩點(diǎn)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(shí)D=r*|x1-x2|氣壓：1 atmosphere pressure=1013.25hPa=760.00mm of mercur

3、y(Hg)=29.921 in ches(Hg)= 14.7lb/sq.i nch速度：1m/s = 1.94k nots = 2.24miles/hr = 3.28ft/s = 3.60 km/hr長度:1 浬 nautical mile=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=1.031

4、0甲=3025 坪=10.31分容積：1立方公尺cubic meter=1公秉=1000公升liter=219.98加侖 gallo n( UK)=264.171gallo n(USA)熱量：1 calorie=4.187*10*7 ergs太陽輻射單位換算-近紫外線(約0.3-0.4口 )至近紅外線(約34口 )間之波長積算量：1MJ? m-2=23.9ca? cm-2=0.278 kw? h? m-2強(qiáng)度：Ical? cm-2? min -1=0.698kw?-2-2-1Ikw? m =1.431cal? cm ? minm-1J=1w? s1ly=1cal? cm-2= 0.0428MJ

5、? m-2IPS(International Pyrheliometric Scale)-1956觀測值=Smithsonian 觀測值 x 0.98WRR(World Radiometric Refere nee)觀測值=IPS-1956 觀測值 x 1.022 (CWB測報(bào)作業(yè)規(guī)范)長度（英美制）Len gths *1 foot (ft.) = 12 in ches (in.)1 yard (yd) = 3 feet1 rod = 5.5 yards1 fathom = 6 feet1 furlo ng = 40 rods = 1/8 mile1 mile (mi.) = 1760 yar

6、ds = 5280 feet1 nautical mile = 1.15 miles = 6076.1 :eet1 land league = 3 miles1 marine league = 3 n autical miles重量（英美制）Weights *Avoirdupois Measures1 grain = 0.0648 grams (g)1 ounce (oz.) = 437.5 grains1 pound (lb.) = 16 ounces1 ton = 2000 pou nds1 long ton = 2240 pou ndsTroy Measures1 grain = 0.0

7、648 grams (g)1 carat = 3.086 grains = 0.2 grams1 penny weight = 24 grains1 troy ounce = 480 grains1 troy pound = 12 troy oun cesApothecary Measures1 grain = 0.0648 grams (g)1 scruple = 20 grains1 dram = 3 scruples1 apothecary ounce = 8 drams1 apothecary pound = 12 apothecary oun ces體積 Volumes *液體計(jì)量

8、Liquid Measures1 tablespo on (tbsp or T) = 3 teaspo ons (tsp or t)31 fluid ounce (fl oz) = 2 tablespo ons = 1.805 in1 cup (c) = 8 fl. oz.1 pin t (pt) = 16 fl. oz. = 28.88 in31 quart (qt) = 2 pi nts = 57.75 in31 gall on (gal) = 4 quarts1 barrel of petroleum = 42 gal.1 barrel of liquid = 31 gal.固體計(jì)量 D

9、ry Measures1 in3 = 16.387 cm31 ft3 = (12 in)3 = 1728 in31 yd3 = (3 ft)3 = 27 ft31 dry pi nt (pt) = 33.60 in31 dry quart (qt) = 2 dry pints = 67.23 n1 peck = 8 dry quarts1 bushel = 4 pecks1 cord = 128 ft3SI (Metric) Prefixes *Small ValuesLarge ValuesPrefixAbbreviationValuePrefixAbbreviati onValue分（十分

10、）Decid10-1十 Decada101厘（百分）c10-2百 Hectoh102Centi毫 Millim10-3 千 Kilok103微 Micro卩(ppm)10-6百萬分白力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102016410

11、5丄 3210/丄361010401044/貯810參考名稱：恒河 沙阿僧 祇那由 他不可思 議無量大數(shù)10521056101064101072換算*英制-> 公制1 inch = 2.540 cm1 foot = 0.3048 m1 yard = 0.9144 m1 mile = 1.6093 km1 pou nd = 0.4536 kg1 fl. oz. = 29.574 milliliters1 qt = 0.9464 liters1 gal = 3.785 liters公制-> 英制1 cm = 0.3937 in.1 m = 3.28 feet1 m = 1.094 ya

12、rds1 km = 0.6214 mi.1 kg = 2.205 pou nds1 milliliter = 0.03381 fl. oz.1 liter = 1.057 qt.1 liter = 0.2642 gal.溫度 TemperatureK C 273.159F -C 3255C 9(F 32)理想氣體狀態(tài)方程 Equation of State of an Ideal GaspV = mRT if p=1013.25mb, V=22.415*10*3cm*3, T=273.16 ° KR*=mR=u ni versal gas con sta nt =8.3144*10*7 erg mol*-1 k*-1財(cái)務(wù)公式 Financial Formul