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各種單位符號一覽表數量詞頭希臘字母aATTO-微微微10-18αAALPHAfFEMTO-亳微微10-15βBBETApPICO-皮(微微)10-12γΓGAMMAnNANO-納(亳微)10-9δΔDELTAuMICRO-微10-6εEEPSILONmMILLI-亳10-3ζZZETAcCENTI-厘10-2ηHETAdDECI-分10-1θΘTHETAdaDECA-十10ιIIOTAhHECTO-百102κKKAPPAkKILO-千103λΛLAMBDAMMEGA-百萬106μMMUGGIGA-十億109νNNUTTERA-兆1012ξΞXIοOOMIKRONπΠPIρPROσΣSIGMAτTTAUυYUPSILONφΦPHIχXKHIψΨPSIωΩOMEGA符號、單位及常數∞INFINITY無限大。DEGREE度’MINUTE分”SECOND秒℃DEGREECELSIUS攝氏℉DEGREEFAHRENHEIT華氏。RDEGREERANKINE絕對華氏αATTENUATIONCONSTANT減弱系數;吸收系數ε。ELECTRICCONSTANT(8.85418x10-12F-m-1)真空介電常數λWAVELENGTH波長μAMPLIFICATIONFACTOR增益因數μmMICRON(10-6m)微米μ。PERMEABILITYOFVACUUM(4πx10-7H-m-1)真空磁通量常數πRATIOOFCIRCUMFERENCETODIAMETER(P1)圓周率σSTEFAN-BOLTZMANNCONSTANT(5.6697x10-8W-m-2-K4)STEFAN-波玆曼常數ψPHASE相位ψDIAMETER直徑ωANGULARFREQUENCY,2πf(f=FREQUENCY)角頻率ΩOHM歐姆Ω/VSENSITIVITYRATINGFORMEASURINGTOOLS歐姆伏特比ÅANGSTROM(10-10m)埃asbAPOSTILB(10-4L)亮度單位atmosATMOSPHERE大氣壓力bBIT位元bBARN(10-24cm2)核子橫功切面單位barUNITOFPRESSURE(105N-m-2)巴(壓力單位)bpsBITPERSECOND每秒位元數b/sBITPERSECOND每秒位元數btuBRITISHTHERMALUNIT英國熱單位cCHARACTER字符cVELOCITYOFLIGHT光速calCALORIE卡路里ccCUBICCENTIMETER立方厘米cdCANDELA;CANDLE(UNITOFLUMINOUSINTENSITY)新燭光(發光強度單位)cd-m2CANDELAPERSQUAREMETER(UNITOFLUMINANCE)每平方米新燭光(亮度單位)cgsCENTIMETER-GRAM-SECONDUNIT厘米克秒制單位cmilCIRCULARmil(AREAOFACIRCLEWITHDIAMETEROF1mil)密爾圓面積cpiCHARACTERPERINCH每吋字符數cpmCYCLEPERMINUTE每分鐘周數cpsCYCLEPERSECOND(Hz)每秒鐘周數(赫玆)dynDYNE(10-5N)達因dBDECIBEL分貝dBaDECIBELSADJUSTED已調分貝(噪音干涉效應單位)dBfDECIBELSABOVE1fW功率水平單位dBkDECIBELSABOVE1kW功率水平單位dBmDECIBELSABOVE1mW功率水平單位dBpDECIBELSABOVE1pW功率水平單位dBrnDECIBELSABOVE1REFERENCENOISE功率水平單位dBxDECIBELSABOVEREFERENCECOUPLING功率水平單位dBCC-SCALESOUNDLEVELINDECIBELS聲音水平音位dBvDECIBELSABOVE1V功率水平單位dBwDECIBELSABOVE1W電壓水平單位eBASEOFNAPIERIANLOGARITHM自然對數基底電荷eELECTRONICCHARGE(1.60210x10-19C)電子電荷erg10-7j爾格eVELECTRONVOLT電子伏特fFREQUENCY頻率faradayUNITOFELECTRICITY(96,500C)法拉第(電量單位)fl.OZFLUIDOUNCE液盎司fpsFOOT-POUND-SECONDUNIT呎磅秒制單位ftFOOT呎tf-lbUNITOFWORK磅-呎(功之單位)gACCELERATIONDUETOGRAVITY(9.80665m-s-2)重力加速度gGRAM克galGALLON加侖gndGROUND接地hPLANCK'SCONSTANT(6.62559x10-34J-s)蒲朗克常數hpHORSEPOWER(745.7W)馬力hrHOUR時inINCH吋kBOLTZMANN'SCONSTANT(1.38054x10-23J-K-1)波玆曼常數ktKNOT(1.85km-hr-1)浬lLINE行lLITRE公升lbPOUND磅lmLUMEN(UNITOFLUMINOUSFLUXINCANDELA)流明(光通量單位)lm/ft2UNITOFILLUMINATION照明單位lm/m2UNITOFILLUMINATIONINSIUNIT(LUX)照明單位(勒克司)lm/WUNITOFLUMINOUSEFFICACY每瓦流明(光照效率單位)lm-sUNITOFQUANTITYOFLIGHT流明秒(光之單位)lnNATURALLOGARITHM自然對數logLOGARITHM常用對數lpiLINEPERINCH每吋之行數lpmLINEPERMINUTE每分鐘之行數lxLUX(lm-m-2)勒克司(照明單位)mMETER米mMINUTE分mMOLALITY重量莫耳濃度mMONTH月mhoFORMERUNITOFCONDUCTANCEANDADMITTANCE電導和導納單位(已改用西門子)miMILE哩mil10-3in密爾(千分一吋)molMOLE莫耳;克分子ntNIT(cd-m-2)亮度單位俗品nvNEUTRONFLUX,INTENSITYOFNEUTRONRADIATION中子輻射量nvtTIMEINTEGRALOFNEUTRONFLUX中子輻射量之時間積分ozOUNCE盎司parsec3.26LIGHTYEAR秒差矩phPHOT(lm-cm-2)輻透(照度單位)phonUNITOFLOUDNESS□方(響度單位)pHLOGARITHMOFTHERECIPROCALOFTHERPOTON表示溶液酸CONCENTRATIONINASOLUTION鹼度的數值ppbPARTPERBILLION十億分一ppmPARTPERMILLION百萬分一ppsPULSESPERSECOND每秒脈衝pptPRECIPITATION沉澱preampPREAMPLIFIER前置放大器psilb-in-2壓力單位radRADIAN弧度rdRAD,UNITOFRADIATIONDOSIMETRY(100erg-m-1)拉德(輻射劑量單位)relUNITOFRELUCTANCE磁抗單位remROENTGENEQUIVALENTMAN.UNITO倫琴人當量OFIONIZINGRADIATION(游離輻射單位)repROENTGENEQUIVALENTPHYSICAL,倫琴人物理當量UNITOFIONIZINGRADIATION(游離輻射單位)rpmREVOLUTIONPERMINUTE每分鐘轉速sSECOND秒sbSTILB,UNITOFLUMINANCE(1cd-cm-2)照明單位slugUNITOFMASSINft-lb-sSYSTEM(14.5939Kg)斯勒格;斯soneUNITOFLOUDNESS宋(響度單位)srSTERADIAN,UNITOFSOLIDANGLE球面度(立體角單位)torr133.322N-m-2乇uATOMICMASSUNIT原子質量單位varUNITOFREACTIVEPOWER(VOLTAMPEREREACTIVE)乏(無功伏安)varhVA-hr乏時ydYARD碼yrYEAR年AAMPERE安培AATMOSPHERE大氣壓力BBYTE位元組BMAGNETICFLUXDENSITY磁通量密度BBASEOFTRANSISTOR電晶體之基极BBEL(10dB)貝;貝爾BdBAUD波特CCAPACITANCE電容CCAPACITOR電容器CCOLLECTOROFTRANSISTOR電晶體之集极CCOMBINATION組合CCOULOMB(1A-s)庫侖CiCURIE(3.700X1010DISINTEGRATIONS-s-1)居禮CBCITIZENBAND民用頻帶CTCENTERTAPINCIRCUITDIAGRAM電路圖內顯示中央抽頭(分接頭)CUCROSSTALKUNIT交調失真單位C/lCARRIER-INTERFERENCERATIO載波干擾比DDRAIN漏极DDEUTERIUM(H2)重氫(氘)DCDIRECTCURRENT直流EELECTRICFIELDSTRENGTH電場強度EEMITTEROFTRANSISTOR電晶體之射极EVOLTAGE電壓ELECTRONICBOHRMAGNETONUNITOFMAGNETICMOMENT(9.2732X10-21erg-G-1)電子波爾磁子(磁力矩單位)EMFELECTROMAGNETICFORCE電磁力EMUELECTROMAGNETICUNIT電磁單位ERPEFFECTIVERADIATEDPOWER有效輻射功率ESUELECTROSTATICUNIT靜電單位Ffarad法拉FFARADAY'SCONSTANT(9.64870X104C-mol-1)法拉第常數FFILAMENT燈絲,絲极FFUSE保險絲Fermi10-15m費米FERMICONSTANTUNIVERSALCONSTANTINBETA-DISINTEGRATION費米常數GGAUSS高斯GCONDUCTANCE導電性GGATE場效應電晶體的閘极GGENERATOR發電機GGRAVITATIONALCONSTANT(6.670X10-11N-m2-kg-2)重力常數GGRID柵GbGILBERT(0.7956A-TURN)吉伯GmTRANSCONDUCTANCE電子管的放大因數GMTGREENWICHMEANTIME格林威治時間H2DEUTERIUM重氫(氘)H3TRITIUM重氫(氘)HMAGNETICFIELDSTRENGTH磁場強度HHENRY亨利HHEATER電熱器HZHERTZ赫玆ICURRENT電流ICINTERNALCONNECTION電子管邊接方式ISINTERNALSHIELD電子管內金屬塗層屏蔽JJOULE焦耳KKΩ千歐姆俗用簡寫KRELAY繼電器KCATHODE陰极KKELVIN開氏LAVOGADRO'SCONSTANT(6.02252X1023mol-1)亞彿加厥常數LCOIL線圈LINDUCTANCE電感LLAMBERT(lm-cm-2)朗伯(亮度單位)LCINDUCTANCE-CAPACITANCE電感,電容,電路L-CINDUCTANCE-CAPACITANCE電感,電容,電路L/CRATIOOFINDUCTANCEANDCAPACITANCE電感,電容比MMOLARITY莫耳濃度MMUTUALINDUCTANCE互感MSBMOSTSIGNIFICANTBIT最能效位元MxMAXWELL(10-8Wb)馬克士威NNEWTON牛頓NNORMALITY當量濃度NNUMBEROFTURNS轉數N-m-2UNITOFPRESSURE壓力單位(帕斯卡)NpNEPER(8.686dB)奈培(衰耗單位)NCNOCONNECTION電子管內無接電极NCNORMALLYCLOSED繼電器接触NCNUMERICCONTROL數位控制NEPNOISEEQUIVAL