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發表於:2020-04-15
問題詳情:【問題情境】如圖1,四邊形ABCD是正方形,M是BC邊上的一點,E是CD邊的中點,AE平分∠DAM.【探究展示】(1)*:AM=AD+MC;(2)AM=DE+BM是否成立?若成立,請給出*;若不成立,請說明理由.【拓展延伸】(3)若四...
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發表於:2016-12-16
Thenewtests,however,aremoresensitiveandcandetectcellulardamagewithinhours.Hedescribesagingasthelifelongaccumulationofvarioustypesofmolecularandcellulardamagethroughoutthe...
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發表於:2024-01-08
1、Whathe'sdoingisamazing,YankeescenterfielderJohnnyDamonsaid.2、Afterfallingshortofwinningitallinthe2001season,thea'slosekeystartersJohnnyDamon,JasonGiambiandJasonIsri...
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發表於:2017-04-26
Thefloodweakenedthedam.Thedamis50metresinheight.Thepurposeofadamistwofold.Thisnotwithstanding,thedamisstillthehighestconcretearchdamintheworld.Thedamcanwithholdthepressur...
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發表於:2018-11-08
TheconcreteimpermeablepanelconstructiontechnologyofSilingreservoirdamThisarticletaketheGuojiacunreservoirdamasanexample,introducedtheapplicationofchargemethodandhighdensi...
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發表於:2019-04-11
問題詳情:已知:如圖,∠BAC=∠DAM,AB=AN,AD=AM,求*:∠B=∠ANM.【回答】由∠BAC=∠DAM可得出∠BAD=∠NAM,結合AB=AN、AD=AM即可*出△BAD≌△NAM(SAS),再根據全等三角形的*質可得出∠B=∠ANM.*:∵∠BAC=∠DAM,∠BAC...
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發表於:2018-05-09
Theswell'sdataobservedintheactualcofferdamdemolitionblastinghavealsoconfirmedtheaccuracyofmodelexperimentachievement.Thestressstateandseepageofanti-seepagewallsunderlong...
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發表於:2017-02-23
Themassive-headbuttressdamhassomeattractivefeaturesforcertainlocations.Multi-archdamisoneoflightbuttressdamsanditscappingplateshowsarch....
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發表於:2018-05-22
Theybuiltupanearthendamintime.ThelargestearthendamintheU.S.,itwasconstructedonanactivefaultlineinthe1950sandfilledin1968....
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發表於:2016-12-14
It'shardtodamupone'sfeelings.Theyaregoingtodamuptherivertosetupahydropowerstation.Afterwardssomeofusgocanoeingouttothebeavers'damupthecreekwhilethebigguysstickaroundth...
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發表於:2020-09-01
問題詳情:如圖,∠BAC=∠DAM,AB=AN,AD=AM,求*:∠B=∠ANM.【回答】解:∵∠BAC=∠DAM,∠BAC=∠BAD+∠DAC,∠DAM=∠DAC+∠NAM,∴∠BAD=∠NAM.在△BAD和△NAM中,∴△BAD≌△NAM(SAS),∴∠B=...
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發表於:2017-12-03
ThehorizontalconstructionjointtreatmentofErtanArchdamconcrete,concreteplacementofdambaseandconnectionefficiencyexaminationbetweenconcretejointsandconcretewithdambase.Thea...
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發表於:2023-12-27
1、Analysisonconstructionmonitoringofgravel-soilcoreofrockfilldamofPubugouHydropowerStation2、Applicationofrib-strippedrollingstraightthreadconnectiontechnologyinface-sla...
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發表於:2020-04-13
問題詳情:如圖,已知正方形ABCD,點M是邊BA延長線上的動點(不與點A重合),且AM<AB,△CBE由△DAM平移得到.若過點E作EH⊥AC,H爲垂足,則有以下結論:①點M位置變化,使得∠DHC=60°時,2BE=DM;②無論點M運動到...
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發表於:2017-09-07
TheapplicationoffuzzyextensionmodelindamdeformationevaluationThereby,damdeformationandinnerwaterpressureofthepenstockaremainfactorstocauseaxialtensilestressandcircumferen...
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發表於:2021-12-13
Thisballettoldthestoryofthetriumphantbuildingofahydroelectricdam.Eveningswerespentatthetheatre.Thisballettoldthestoryofthetriumphantbuildingofahydroelectricdam.Theruinsof...
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發表於:2021-08-22
問題詳情:如圖7,正方形ABCD的邊長爲a,點E在邊AB上運動(不與點A,B重合),∠DAM=45°,點F在*線AM上,且,CF與AD相交於點G,連接EC,EF,EG,則下列結論:①∠ECF=45° ②的周長爲③④的...
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發表於:2017-06-08
Theshortdrivewastheperfectplacetoshowhimwhatwesuspectareoldlakedepositscausedbyalandslidedam.AlandslidedamlocatedintheHuangheupriverwasformedbytwolandslides,thenformedthe...
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發表於:2020-12-01
SafetymanagementforexcavationofundergroundchambersandtunnelsofBaisemultipurposedamprojectForthelocalspringphenomenonoccurredinRCCofBaisemultipurposedamproject,theauthorma...
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發表於:2023-12-28
1、adamacrossariver(orrivulet);abarrage;adiversiondam;aweir2、diversiondam:ABarrieracrossastreamBuilttoturnallorsomeofthewaterintoadiversion.3、Netcagestoneisalsousedtosp...
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發表於:2017-01-29
Cetianreservoirisoneoftheseriouslydangerousreservoirsinourcountrybecauseofsevereseepageandpipinginthefoundationofsouthsecondarydam.Insomecases,secondarydamageinthevascula...
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發表於:2017-12-07
InJiangsuShahePumped-storagePowerPlant,bothmaindamandauxiliarydamofupperreservoirarerockfilldamwithconcreteslab.Analysisonmonitoringdataofcut-offwallofauxiliarydamatHuang...