BasicinformationRelationalDatabaseManagementSystem(RDBMS)referstoasetofprocedures(databasemanagementsystemsoftware)thatincludesinterconnectedlogicalorganizationsandaccesstothesedata.Arelationaldatabas...
ArchitecturallayoutThishallisdividedinto9exhibitionhalls.TheaudiencestartedfromtheOceaniaRoomandvisitedtheexhibitionhallsinAmerica,Europe,Africa,WestAsia,SoutheastAsia,NorthCentralandEastAsiainsequenc...
IntroductionPowerelectronicequipmentisadevicecomposedofvariouspowerelectroniccircuits.Usedfortheconversionandcontrolofhigh-powerelectricenergy.Alsoknownasconverterdevice.Itincludesrectifiers,inverters...
SynonymAmericanNationalStandardsInstitutegenerallyreferstotheAmericanNationalStandardsInstitute.HistoricalbackgroundTheAmericanNationalStandardsInstitute(ANSI)wasfoundedin1918.Atthattime,manycompanies...
EstablishmentanddevelopmentInthe1930sand1940s,scientistsbegantopaygreatattentiontotheresearchinformationmeasurementandfeedbackmechanism,andgainedarelativelydeepunderstanding.BritishstatisticianRAFishe...
IntroductionTheorganellesofanimalcellsandplantcells(2photos)Theorganellesaredividedinto:mitochondria;Chloroplast;endoplasmicreticulum;Golgiapparatus;lysosome;vacuole,ribosome,centrosome.Amongthem,chlo...
HistoryofproductionMorsecodeisakindofmagicalcode,itisasignalcodeanditisonandoffatalltimes.Suchsignalcodesaredisplayedindifferentsequences.OutdifferentEnglishletters,numbers,andpunctuationmarks.Itsinve...
StructureIntheshell,somekeyboardsarefixedonthekeyboardpanelandthebasewiththetechnologyofplasticconcealedhooks,realizingametalscrew-freedesign,sobecarefultoavoiddamagewhendisassembling.Inordertomeetthe...
IntroductionThebook"StrangeTalesfromaLonelyStudio"hasnearly500articles,whicharemainlydividedintothefollowingtypes:Thefirstislovestory,whichoccupiesthelargestpartofthebook.Mostofthemaincharactersinthes...
qianhuoziTypetypeThemeasurementoftypehastwotypes:numbersystemandpointsystem.Thepointsystemisgenerallyadoptedintheworld..Thelengthofthedotis0.35146mminBritain,theUnitedStates,Japanandothercountries,and...
BasicprincipleSchematicdiagramofn-channeltime-divisionmultiplexingsystem:Schematicdiagramofn-channeltime-divisionmultiplexingsystem(1picture)Timedivisionmultiplexingissuitableforthetransmissionofdigit...
Interpretation1.Alsoknownas"DunhuangGrottoes".2.IncludingtheMogaoGrottoes,WestThousandBuddhaCaves,YulinGrottoesandShuixiakouSmallThousandBuddhaCaves,whichbelongedtoDunhuanginancienttimes.Generallyrefe...
ThesynonymTuoli(TuoliCounty,XinjiangUygurAutonomousRegion)generallyreferstoTuoliCounty.HistoryEarlyHistoryToliCountyhasbeenlocatedintheWesternRegionssinceancienttimes,duringtheQinandHanDynasties,Theco...
Synonymousbarcodegenerallyreferstobarcode.IntroductionBarcode(barcode)isamethodofarrangingmultipleblackbarsandblanksofdifferentwidthsaccordingtocertaincodingrulestoexpressagroupofinformationGraphicide...