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Microphone
08/05/2022 844
Microphone

BriefintroductionThemicrophoneisoneoftheimportantpartsofthetelephone.Itcanconvertsoundintovoicecurrent,soitisanacoustic-electricconversiondevice.Microphonesaregenerallydividedintotwocategories,namelyl...

Organic synthetic materials
08/05/2022 660
Organic synthetic materials

IntroductionTherearemanytypesofsyntheticmaterialsfororganicsyntheticmaterials.Syntheticplastics,syntheticfibers,andsyntheticrubbersarewhatweusuallycallthethreesyntheticmaterials;mainlyreferstothesynth...

Surface roughness
07/05/2022 647
Surface roughness

Synonymsurfacefinishgenerallyreferstosurfaceroughness.DevelopmentInordertostudytheinfluenceofsurfaceroughnessontheperformanceofpartsandtheneedtomeasuresurfacemicroscopicunevenness,fromthelate1920stoth...

megahertz
07/05/2022 653
megahertz

IntroductionThebasicunitoffluctuatingfrequencyisHertz,whichisbasedonthethousand-carryingsystem;1MHzisequivalentto1000kilohertz(KHz),whichis10tothe6thpowerofHz.Itisworthnotingthatmegahertzisjustadefini...

Public telephone
06/05/2022 750
Public telephone

ConceptAkindofartificialtelephoneexchangethatisusedbythetelephoneofficetoprovidetelephoneuserswithcallpower.Itappearedinthelate19thcentury.ChinastartedtouseitinBeijingin1910.Duetothedevelopmentoftheap...

Math tools
06/05/2022 764
Math tools

MainfunctionsCurrently,themainfunctionsof"MathematicsTools"includealargenumberofcommonlyusedstaticmathematicalgraphicsandsymbols."MathematicsTools"providesalargenumberofcommonlyusedmathematicalsymbols...

Form
05/05/2022 677
Form

OverviewForexample,thereisanorganizationthatwantstocollectpersonalinformationofemployees,suchasname,address,contactnumber,etc.Youcandesignaform.Name,“sex”,“address”,etc.areenteredbytheformdesigner,and...

Yuan Dynasty
05/05/2022 701
Yuan Dynasty

SynonymYuanDynastygenerallyreferstotheYuanDynasty(Chinesehistoricaldynasty)CountryTitleThepredecessoroftheYuanDynastywastheGreatMongolianStateestablishedbyGenghisKhan.TheSouthernSongDynastyLiXin's"Mis...

Accuracy
04/05/2022 789
Accuracy

RelationshipAccuracyisthedifferencebetweentheaveragevalueofeachindependentmeasurementandthetruevalueoftheknowndata(thedegreeofconformitywiththetheoreticalvalue).Forexample:theaveragevalueoftheresultso...

Fuse
04/05/2022 718
Fuse

WorkingprincipleAnelectricalappliancethatusesametalconductorasamelttobeconnectedinseriesinacircuit.Whenoverloadorshort-circuitcurrentpassesthroughthemelt,itwillfuseduetoitsownheat,therebybreakingtheci...

FIFA World Cup
03/05/2022 746
FIFA World Cup

AsynonymfortheWorldCupfootballmatchgenerallyreferstotheFIFAWorldCupcreationMay21,1904,FIFA’sfirstpresident,FrenchmanRobertGuerlain,forthefirsttimeThisideawasproposedtothefootballleadersofvariouscountr...

Job responsibility system
03/05/2022 723
Job responsibility system

PrinciplesThefollowingprinciplesmustbeemphasizedwhenimplementingthepositionresponsibilitysystem.⑴Theprincipleofunificationoftalentsandpositions(thedegreeofmatchingofpersonnelandpositions)Itistoassigns...

Situational teaching
02/05/2022 818
Situational teaching

MeaningSituationalteachingisthespecificapplicationofsituationallearningconceptsinteaching.Itreferstothecreationofaproblemsituationinteachingtoorganizestudentstowatchandcommentontheproblemsolvinginthes...

Joseph Conrad
02/05/2022 739
Joseph Conrad

SynonymConrad(writerConrad)generallyreferstoJosephConrad(oneoftheeightmodernBritishwriters)CharacterlifeDecember3,1857,JosephKahnRadwasborninPolandundertheruleofTsaristRussiaandspenthischildhoodinanup...

Byzantine Generals Question
01/05/2022 718
Byzantine Generals Question

OriginsByzantiumislocatedinIstanbul,Turkey,thecapitaloftheEasternRomanEmpire.DuetothevastterritoryoftheByzantineRomanEmpireatthattime,inordertoachievethepurposeofdefense,eacharmywasseparatedveryfar,an...