翻译万有力与电磁力统一的内容b.docx

rateisfastandslow,thechangeanplitudeislargeandsmall,andthefollowingisthechangecurveofthreekindsofgravityandrepulsion.GraphsofchangesingravitationalandrepulsiveForces6、latchtheESAprovethatnatteriselectricallychargedItalywas"lockeddown"fortwoweeks,andsatellitesspottedthesechangesIthasbeennearlytwoweekssinceItalyimposedanationwidelockdownonMondaytopreventthefurtherspreadofthenovelcoronavirus.Fromthedistanceofspace,thebustlingcityofthepast,thedensecrowdislikeadensedot.InrecentsatelliteimagesofIlaly,thesquaresoflandmarkattractionssuchasRome,SColosseumandMilan'sCathedralhavebeencoveredbythese"dots"al1yearround.ButafterMarch10,thedotssuddenlydisappeared.Inaddition,satelliteshavefoundthattheairqualityinIlolyhasimprovedasaresultofthelockdown.Inaddition,satelliteshavefoundthattheairqualityinItalyhasimprovedasaresultofthelockdown.Varioussensorscarriedbythesatellitecancollectelectromagneticwavesignalsofsuspendedparticlesintheair,soastoanalyzeandjudgetheairquality,6、ThespectrometerprovedthattheatomswerechargedSpectrometerisalsoknownasspectrophotometer,differentlightsourceshavetheirownuniqueemissionspectrum,sodifereniluminariescanbeusedasthelightsourceoftheinstrument.Istheuseof1ightabsorptioninacertainwavelengthrange,qualitativeorquantitativeanalysisofsubstances.Theco11unonlyusedwavelengthrangesare:(1)ultravioletregionof200'380r>m,(2)visibleregionof380'780r>m,and(3)infraredregionof2.5'25in.Instrumentsaredividedintoultravioletspectrophotometers,visiblelightSPeCtToPhOtOmeterS(orcolorimeters),infraredSpectrophotomotersoratomicabsorptionspectrophotometers.SpectrophotometerusesHlightsourcethatcanproducemultiplewavelengths,throughaseriesofspectrophotometriedevices,therebyproducingaspecificwavelengthlightsource,1ightthroughthetestsample,partofthelightisabsorbed,calculatetheabsorptionvalueofthesample,whichisconvertedintotheconcentrationofthesample.Theabsorptionvalueofthesampleisproportionaltotheconcentrationofthesample.Whenthemonochromaticlightradiationpassesthroughthemeasuredsubstancesolution,theamountabsorbedbythesubstanceisproportionaltotheconcentrationofIhesubstanceandthethicknessofthe1iqui<llayer(thelengthoftheopticalpath),therelationshipisasfollows:A=-lg(O)=lgT=k1.cWhere:Aisabsorbance;IOistheincidentmonochromatic1ightintensity：I为透射的单色光强度：Tisthetransmittanceofthesubstance：kisIhemolarabsorptioncoefficient;1.istheopticalpathoftheanalyzedsubstance,thatis,thesidelengthothecupola;cistheconcentrationofthesubstance;Thereareinfraredanalyzer,visible1ightanalyzer,ultravioletanalyzer,atomicabsorptionspectrophotometerandsoon.Atomicabsorptionspectropholoneter:ThedevicethatusestheresonantradiatinoftheelementtobemeasuredthroughitsatomicvaportodetermineitsabsorbanceiscalledanatomicabsorptionSpectrophotomcter.Ithassinglebeam,doublebeam,doublechannel,multi-channelandotherstructuralforms.ItisoneoftheconventionalinstrumentsforanalysisoftraceUndtracecomponentsinsamples.Itisapowerfultoolformaterialanalysisandqualitycontroldepartmenttoanalyzemajorandtracemetals(serai-metals).Fluorescencespectrophotometerisaninstrumentusedtoscanthefluorescencespectrumemittedbyfluorescentlabelsintheliquidphase,whichisusedinscientificresearch,chemicalindustry,medicine,biochemistry,environmentalprotection,clinicaltesting,foodIesling,leachingexperimentsandotherfields.Throughthedeterminationoftheseparameters,Wecannotonlydogeneralquantitativeanalysis,butalsoinfertheconformationalchangesofcopied.Onlyonebasepaircopyerroroccurs.Thereisnoneedforone-to-onecorrespondencebetweenthebasesonRN,andaboutevery10,000to1mi1lionbases,therewillbeamistake,soitiseasytohavegeneticmutations*DNAfcRNAtt*H0M.A!,.Insixhours,aviruscanreplicatoitself6t000times,sothevirusisveryeasytomutate.Notallmutatedvirusescansurvive,becausethegeneticmutationisdirectionless,andifthedirectionofthegeneticmutationdoesnothelpthevirusadapttotheenvironment,theviruswillbeeliminated.Onlyafewbasemutationsatkeysitescausethevirustomutate.AccordingIothestudy,amutationoccurredalsite28144oftheRNgenomeofthevirus.The1.subtypeistheTbaseandtheSsubtypeistheCbase.InbothRNAandDNA1thebasesthatmakercplicationerrorsarcrandom,meaningthatmutationsaredirectionless.Theforceofthematerialandparticles(genes)inthemiddleoftheviralcellisbasicallybalanced,andtheforceoftheRNgeneisbasicallynobalanceforce,anditisunstable,becausethegravitationalforceisgreaterthantherepulsiveforce,thematerialincreases,therepulsiveforceisgreaterthanthegravitationalforce,thematerialdecreases,thegravitationalforceandIherepulsiveforceconvertquickly,thenewmaterialisadded,andtheoriginalmaterialischanged.4.2,Healthfactor.：Healthmeansthatapersonisingoodphysical,mentalandsocialcondition.HealthincludesIwoaspects:first,thereisnodiseaseinthemainorgans,thebodyshapeiswelldeveloped,thebodyshapeisuniform,thebodysystemhasgoodphysiologicalfunction,hasstrongphysicalactivityabiIityandlaborability,whichisthemostbasicrequirementforhealth;Second,ithasstrongresistancetodiseaseandcanadapttoenvironmentalchanges,va