版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
本科毕业设计(外文翻译) --毕业设计(外文翻译)题目智能照明控制系统系(院)光电信息工程学生姓名胡超学号b******指导教师职称IntelligentLightingControlSystemAbstract:Thispaperdescribesthedevelopmentoflightingcontrolsystems,intelligenlightingcontrolsystemmainlySystemfunctionsandapplicationsarediscussed.Keywords:intelligentlightingcontrolbustransferprotocolgreenenergy1、IntroductionWiththecontinuousdevelopmentofoureconomy,rapidlyrisinglivingstandards,peopleworkingandlivingenvironmenthavebecomeincreasinglydemanding,whilethelightingsystemrequirementshavebecomemoresophisticated,thetraditionallightingtechnologyhasbeenastrongblow.Ontheonehandbecauseofinformationtechnologyandcomputertechnologychangesinlightingtechnology,providingtechnicalsupport;thotherhand,duetoenergyshortage,thestatemoreandmoreattentiononenergy-savinlighting,newlightingcontroltechnologytodeveloprapidlytomeetwithByenergyconservation,comfort,conveniencerequirements.Lightingcontrollightingcontrolfrothetraditionalmanualmethod,automatedlightingcontroltotoday'sintelligentlightingcontrol.Intelligentlightingcontrolsystemisbasedoncomputer-controlledall-digitalplatform,modular,distributedbuscontrolsystem,thecentralprocessormodulescommunicatedirectlythroughthenetworkbus,thebusmakesuseoflighting,dimming,blinds,scenecontroltoachieveintelligent,andbecomeacompletebussystem.Canbbasedonchangesintheexternalenvironmentinthedeviceautomaticallyadjustthestaofthebustoreachsafety,energyconservation,humaneffects,andcanuseinthefutinaccordancewiththerequirementsofusersthroughthecomputerre-Waytoincreaseomodifythesystem'sfunctionality,withouthavingtore-layingofcables,intelligentlightingcontrolsystem,highreliability,flexiblecontrol,lightingcontrolisthetrwaycannotbedone.2.1Thebasiccomponentsandmonitoringthecontentsofthesystem2.1.1SystemcomponentsIntelligentlightingcontrolsystemisusuallydimmermodule,switchmodule,inputmodule,thecontrolpanel,liquidcrystaldisplaytouchscreen,smartsensors,PCintertimemanagementmodule,hand-heldprogrammer,monitoringcomputer(needtobridgealargenetworkconnection)andothercomponentscomposition.Thebasicprincipleofthedimmingmoduleisamicroprocessor(CPU)ThesizeoftheopeninganglecontrolSCRtocontroltheaverageamplitudeoftheoutputvoltagetoadjustthebrightnessoflightsources.switchmoduleiscontrolledbythepowerswitchrelayoutputtocontrollight.3)inputmoduleistoacceptpassivecontactsignalstransmittedtothemicroprocessthebus.4)Thecontrolpanelisintuitiveoperationforcontroloflightingsceneswerethwhichiscontrolledbyamicroprocessor,canbeprogrammedtocompleteavarietyofdifferentcontrolrequirements.Entersymbolidentifyingthemicroprocessor,afterprocessingcontrolinformationsentviathebus,tocontrolthecorrespondingdimminthelightsourcemoduleorswitchingmodulecontrolthedimmingorswitchcontrol.5)Theilluminationofthesensorinterfacemoduleforconnectiontodetection,thereisdetection,motiondetectionandothersensors.6)TimeManagementmodulecontrolsystemwithanotherdeviceonthebusinterfacetautomatetasksandtimecontrol.2.1.2MonitoringContentsThecentralcontrolsystemthroughthecentralstationandthesystemsoftwareoswitch,dimming,clock,lighting,monitoringandmanagementofthestate.switchcontrol,bythecentralstation,localcontrolpanelforlightsforopen,closecontrol.dimmingcontrol,bythecentralstation,localcontrolpanelforlightingtheillufromzerotomaximumcontrol.Thetimeclockcontrolsystembasedonpre-settimeforlighttoopenandclosecoTheastronomicalclockcontrol,enterthelocallatitudeandlongitude,thesystemautomaticallycalculatethedayofthesunsettime,thistimetocontrollightingactothescenechanges.Thescenecontrol,throughthecentralstation,localcontrolpanelprogramming,wereon,off,dimmingcontrolsettings.Remotecontrol,remotecontrolviahand-heldcontrolpanelwithinfraredlightfregionunderthecontrolturnedoff,dimmingcontrol.Theilluminationsystemaccordingtotheilluminationdetectionsensordetection(light,lightanddark),inaccordancewiththepre-setparameterstoautomaticallylights,turnoff,dimmingcontrol.exists,motioncontrol,accordingtopresencedetection,motiondetectionsensorotherdetectiondata,inaccordancewiththepre-setparameterstoautomaticallyturnonlights,turnoff,dimmingcontrol.jointcontrol,throughtheinputmodulereceivesthevideosecuritymonitoringsystintrusionalarmsystems,accesscontrolsystems,automaticfirealarmsysteminthecoordinatedcontrolsignalstoswitchonthelightsourcecontrolordimmingcontrol.Remotecontrol,lightingcontrolthroughtheInternetforremotemonitoringandcontrolsystem:includinglightingboxlightingsystemparametersettingchanges;ontsystemtomonitorthestateofthesceneillumination;stateofthesystemtocontrollightingscenes.Graphiccontrol,userscanusetheelectronicmapfunctionontheentireregionforvisualcontrolofthelighting,thefloorplanofthewholebuildingcanbeenteredinsystem,andusedifferentcolorstorepresentthecurrentstateoftheregion.2.2IntelligentlightingcontrolsystemdatatransmissionIntheinternationallightingcontrolsystemdatatransmissionnetworkwithoutuniformstandards,thecurrentwayofthemaintwistedpair,powerlinecarriertransmissionandthreetypesofradiofrequencytransmission.Thesethreetransmissiondatarates,reliabilityoftransmissionisquitedifferent.2.2.1twisted-pairtransmissionTotwistedpairtransmissiontwistedpairtransmissionnetworkforinformation,thlayingoflinesseparatelyfornewconstruction,expansionoftheproject.ThereareinwayThefollowingadvantages:hardwareandsoftwareprotocolcompletelyopen,perfect,commongood.linesatbothendsoftransformerisolation,immunitytointerference,lightningprotectionperformance.transmissionspeed.Thesystemcapacityisalmostunlimited,thesystemwillnotincreasetheemergenceunexpectedfailures.asaninformationtransmissionmedium,alargenumberofsophisticatedequipmentforgeneraluse.2.2.2PowerLineCarriertransmissionUseofelectricpowerlinecarriertransmissionofinformationtransmissionnetworwithoutlayingasinglelinefordatatransmissionofthesignalscanbeappliedtonewconstruction,expansionoftheproject,andespeciallyforreconstructionprojects.Polinecarriertransmissioninthecurrentfluctuationsduetopowerlines,datatranandreliabilityofdatatransmissionbyagreaterimpact,reducingefficiency.Whenthemonitoringequipmentforalongtime,noreliabledatatransmissionmaycausethesystoastandstill.2.2.3RadiofrequencytransmissionRadiofrequencytransmissionofinformationusingwirelessradiotransmissionnetworkasthesystemcannotonlysatisfythefunctionalrequirements,indoornowisimpleconstruction,cansavetheconstructioninvestmentfornewconstruction,expansionoftheproject,andespeciallyforreconstructionproject.RFoperatingfrequencyconsistentwithIEEE802.11bstandards.2.3ThescopeofapplicationofintelligentlightingcontrolsystemLightingcontrolsystemcanbeincandescent,fluorescent,energysavinglamps,quartzlampsandotherlightdimmingthelightsonalloccasionstocontroltheenvironmenttomeetavarietyoflightingrequirements.1)offices,schools,hospitals,factoriesandotherplacesofthelightingsystem,timecontrolsystemonthelighton,turnofftheautomaticcontrol,theuseofillusensorthatautomaticallyadjuststheillumination,energyconservation.Canbethecmonitoringandcontrolsystemcanbeconnectedwiththeconstructionequipment.2)Theatre,conferencerooms,clubsandotherplacesofuseofsystemfunctionsanddimmingthesceneswitchescanbeeasilyconvertedavarietyoflightingscenarios,multi-pointcontrol.Lightsourcecanbecontrolledthroughthesystem,airconditielectricfans,electriccurtains,CanadaHeaterandotherelectricalequipment.3)Thevenuesportsvenuesmatchrequiredbyhierarchicalcontrol,largevenueshoulasinglelightcontrol.Themunicipalworks,squares,parksandotheroutdoorpublicplaces,thegroupusthesystemcontrolsoftwarecancontrollightingthroughouttheregion,theuseofilluminationsensors,timeswitchestoachievelightingautomationcontrol,systemmonitoringsoftwareusingintelligentlightingcontrol.areaswherestreetlightingshouldbebasedonthegeographicallocationandseavariationtodetermineareasonabletimetoswitchlightsandtheskybrightnesschaccordingtothenecessaryamendments,theuseoflightcontrolandtimecontrolofacombinationofintelligentcontrol.Landscapelightingusedinpeacetime,thegeneralholidays,majorholidaysandocontrolmode.2.4Applicationofintelligentlightingcontrolsystemfeatures2.4.1useoflightingcontrolsystem,realizationoftheintelligentlightingcontrol,systemscanruninautomaticstate.1)Thesystemwillbepre-settoswitchanumberofbasicworkingconditions,sucha"day","night","security"and"clean","Weekend"and"lunch"and,accordingtopre-setimeautomaticallyinthetoswitchbetweenvariousworkingconditions.Forexample,worktimecomes,thesystemwillautomaticallyturnonthelightsandthelightintensiautomaticallyadjustedtothemostappropriatelevelofstaff.InthewindowRoom,thesystemcanintelligentlyuseofoutdoornaturallight,whentheweatherwasfine,automaticallydimminginteriorlamp;weatheranddark,indoorlampautolight,toalwaymaintainaconstantbrightnessofroom(atpre-setrequirementsofthebrightness).2)Whentheendofeachworkingday,thesystemwillautomaticallyenterthe"evening"workstatus,autoslowdimmingthelightsoftheregion;thesametime,thesystemfunctionwillautomaticallydetectthepresenceofforce,sothatnooneintheofficelightsautomaticallyturnoff;sametime,therecanguaranteedetectionoftheofficeemployeestoworkovertimeattheappropriatebrightnesslight.Thesystemofpubliccorridorsandstaircasesandotherpublicareasofthelightcoordination,whentheofficehasemployeestoworkovertime,thestaircases,corridorsandotherpublicareastomaintainthebasicbrightnessofthelights,onlywhenthepehascompletedallthepost-officebeforethelighttransferredtothe"safe"stateoroff.manualcontrolpanelorremotecontrol,freetochangetheilluminationoftheregion5)Forthereceptionhall,restaurant,conferencerooms,loungesandentertainmentvenuemaybebasedondifferenttimesofday,differentusesofthepre-setlightingscenesonlythebestcalltopre-setlightingscenes,todesiredvisualeffects.2.4.2maintaintheconsistencyofilluminationofnewbuildingsintouse,theilluminathantherequiredhighillumination.Thisistakenintoaccountastimegoeson,theefficiencyoflightreflectionrateandroomwallsthesakeofcontinueddecay.Ifthedesignersintheearlydesignofthestandardillumination,then,nothowlongitwillthanthestandardroomillumination,illuminationnotmeetbusinessrequirements.Itisbecauseofthehighilluminationofthisnewdesignoftheroom,notonlyresultedinofofficespace(ortwiceatintervalsdecoration)oftheilluminationinconsistency,andbecauseofthehighilluminationunnecessarywasteofenergy.Useoflightingcontrolsystems,ascanbeintelligentdimming,thoughstillhighilluminationdesign,butthesystemwillbeinaccordancewiththestandardpre-setbrightnesstotheofficeduriperiodintheuseofconstantillumination,withoutreducingtheefficiencyoflightwallreflectioncoefficientofattenuation.2.4.3createagoodworkingenvironment,improveworkefficiencyintheoffice,withdimmableelectronicballastsforfluorescentlampsinthesmartUnderthecontroloflightingcontrolsystemwiththetraditionalfluorescentlightingsystemshavesignadvantagescomparedto.Conventionalfluorescentballaststo100Hzfrequencyflashi(2timesthegridfrequency),thisstrobeenablestafftoheadswollen,eyefatigueandreduceworkefficiency.Thedimmableelectronicballastsareworkinginveryhighfrequency(40kHz~70kHz),notonlytoovercometheflicker,butalsotoeliminatestarterwhenthebrightnessoftheinstability,providesacomfortableenvironmentconducivetohealth,butalsoimprovetheefficiency.2.4.4createagoodenvironmentforgoodlightingdesignserviceisabletocreateacomfortableenvironment,addingtoitsartisticcharm.Forexample,thecustomer'simpressionofthehotelentrancetothelobbyofthehotelreceptionarea,elegantanduniquelightenvironmentmaygivecareCustomersfeelathome,addthegoodwillofcustomersofthehotel,friendlyandwarmtoattractalargenumberofcustomers;thebanquethall,functionroomssuchastheuselightcolors,anddifferentshadinginprojectionmethodcancreatethree-dimensional,layereddifferentcoloratmosphere,notonlytheguestshaveacomfortablelivingenvironment,butalsotobringarttothetoenjoy,sothatpeoplehavethefeelinglinger.4.5OpenLightingcontrolsystemcanbeintegratedintotheconstructionequipmentthroughthenetworkmonitoringsystem(BAS),BuildingManagementSystem(BMS),therealizationoftheunifiedmanagementofthebuilding.TechnicalAnalysisLineInvestmentsavingsIntelligentlightingcontrolsystemisasystemthroughthecontrolbustothevinput,outputandsystemsupportunitconnected,powercabledirectlyreceivedfromdistributioncabinetlightingorotherelectricalload,andwithoutgoingthroughtDonothavetoconsiderwheninstallinganycontrolrelationship,andtheninstalledsystemsettingsthroughthesoftwarecodeofeachunit'saddressinordertoestablishrelationsbetweenthecorrespondingcontrol.Comparedwiththetraditionalcontrolmethodsavesalotoftheoriginalreceiptoftheswitchtocable,butalsoshortenthofinstallationandconstruction,savinglaborcosts.significantenergysavingsIntelligentlightingcontrolsystemcantakeadvantageofsmartsensorsensingoutdlight,automaticadjustmentoflightintensity,theoutdoorlightintensity,indoorliweaker;outdoornaturallightisweak,theindoorlightingtostrong,tokeeptheinteconstantstandardofillumination,bothtocreatethebestworkenvironment,butalsosaveenergy.Sincethelightingcontrolsystem,throughsoundmanagement,theuseofsmartclocmanagementdevicesaccordingtodifferentdates,differenttimesofthevariousfunctioareasinaccordancewiththeoperationofpre-setforillumination,nolight,toensurlightsoff;inInfact,themajorityofcases,manyareasdonotneedallthelightsonoropentothebrightest,lightingcontrolsystemscanprovidethemosteconomicalenergyconsumptionthemostcomfortablelighting;insomepublicareassuchasconferencerooms,lounges,etc.,theuseofexistingdetectionfunctionWhensomeoneenteredthelampislitorswitchtoapresetscene.2.5.3extendthesourcelifeisthecauseofdeathinlightdamagetoover-voltagegridhighervoltagesource,doublingitslifereduced.Therefore,maintainingasuitablelightsourcevoltageisaneffectivewaytoextendlamplife.Lightingcontrolsystemcansuccessfullysuppresstheimpactofpowergridvoltageandsurgevoltage,thelightwnotcausetheprematurefailureoftheabove.Canalsobedeterminedbythesystemtoartificiallylimitthevoltagetoimprovethelightsourcelife.Extendthelifeofnsavealotoflightfixtures,butalsosignificantlyreducetheworkloadofreplacementsource,effectivelyreducingtheoperatingcostsoflightingsystems,lightsourcesfodifficultandexpensivetoinstallarealightingalsohasaspecialsignificance.2.5.4improvemanagement,reducemaintenancecostintelligentlightingcontrolsystem,generallightingartificialopeningandclosingconvertedintointelligentmanagement,greatlyreduceoperationandmaintenancecostsoflightingsystems,andreturnoninvestment.3.ConclusionIntelligentlightingcontrolsystemallowsahighdegreeofflexibilityinlightingsolutions,thesystemputintouse,willbringhigh-qualitylightingenvironment,imprthelevelofintelligentmanagementoftheentirebuilding,youcaneasilyadjustthelightingsystem,bothtomeettheaestheticandpracticalrequirements,atthesamereachthegreenenergysavingtargets.Therefore,theintelligentlightingcontrolsystemwillhavebroaderapplication.智能照明控制系统摘要:本文介绍了照明控制系统的发展,主要对智能照明控制系统的功能和应用进行了论述。关键词:智能照明控制总线传输协议绿色节能引言随着我国经济的不断发展,人民生活水平迅速提高,人们对工作和生活环境的要求越来越高,同时对照明系统的要求也越来越高,传统的照明技术受到了强烈冲击。一方面由于信息技术和计算机技术的发展对照明技术的变化提供了技术支撑;另一方面,由于能源的紧缺,国家对照明节能越来越重视,新型的照明控制技术得以迅速发展,以满足使用者节约能源、舒适性、方便性的要求。照明控制方式从传统的手动照明控制方式、自动照明控制方式发展到现在的智能照明控制方式。智能照明控制系统是基于计算机控制平台的全数字、模块化、分布式总线型控制系统,中央处理器、模块之间通过网络总线直接通信,利用总线使照明、调光、百叶窗、场景控制等实现智能化,并成为一个完整的总线系统。可依据外部环境的变化自动调节总线中设备的状态,达到安全、节能、人性化的效果,并能在今后的使用中根据用户的要求通过计算机重新编程来增加或修改系统的功能,而无须重新敷设电缆,智能照明控制系统的可靠性高,控制灵活,是传统的照明控制方式所无法做到的。2.1系统基本组成及监控内容1.1系统组成智能照明控制系统通常由调光模块、开关模块、输入模块、控制面板、液晶显示触摸屏、智能传感器、PC接口、时间管理模块、手持式编程器、监控计算机(大型网络需网桥连接)等部件组成。调光模块的基本原理是由微处理器(CPU)控制可控硅的开启角大小,从而控制输出电压的平均幅值去调节光源的亮度。开关模块是由继电器输出控制电源的开关,从而控制光源。输入模块是接受无源接点信号,通过总线传输给微处理器。控制面板是供人直观操作控制灯光场景的部件,它是由微处理器进行控制的,可以通过编程完成各种不同的控制要求。微处理器识别输入键符,进行处理后通过总线发出控制信息,去控制相应的调光模块或开关模块对光源进行调光控制或开关控制。传感器接口模块用于连接照度探测、存在探测、移动探测等传感器。时间管理模块能与控制系统总线上的设备互相接口,实现自动化任务和时间控制。2.1.2监控内容 中央控制,通过中央站以及系统软件实现对整个系统的开关、调光、时针、灯光状态的进行监控及管理。开关控制,可以由中央站、就地控制面板对灯光进行开启、关闭控制。调光控制,可以由中央站、就地控制面板对灯光进行从照度零到最大的控制。定时时钟控制,系统根据预先设定的时间对灯光进行开启、关闭控制。天文时钟控制,输入当地的经纬度,系统自动推算出当天的日落时间,根据此时间来控制照明场景的变化。场景控制,可以通过中央站、就地控制面板进行编程,对灯光进行开启、关闭、调光控制的设置。遥控控制,可以通过手持遥控器对设有红外线控制面板所控制区域的灯光进行开启、关闭、调光控制。照度控制,根据照度探测传感器的探测数据(光线明、暗),按照预先设定的参数自动对灯光进行开启、关闭、调光控制。存在、移动控制,根据存在探测、移动探测等传感器的探测数据,按照预先设定的参数自动对灯光进行开启、关闭、调光控制。联动控制,通过输入模块接收视频安防监控系统、入侵报警系统、出入口控制系统、火灾自动报警系统的联动控制信号,对光源进行开关控制或调光控制。远程控制,可以通过Internet对照明控制系统进行远程监控:包括对系统中照明箱照明参数的设定修改;对系统的场景照明状态进行监视;对系统的场景照明状态进行控制。12)图示化控制,用户可以使用电子地图功能对整个区域的照明进行直观的控制,可将整个建筑物的平面图输入系统中,并用不同的颜色来表示该区域当前的状态。2.2智能照明控制系统数据传输方式在国际上照明设施控制系统数据的传输网络无统一的标准,目前主要有双绞线传输方式、电力载波传输方式和无线射频传输方式三种类型。这三种传输方式的数据传输速率、传输的可靠程度有较大区别。2.2.1双绞线传输方式 双绞线传输方式以双绞线为信息传输网,需单独敷设线路,适用于新建、扩建的工程。此方式主要有以下优点:软硬件协议完全开放、完善,通用性好。线路两端变压器隔离,抗干扰性强,防雷性能好。传输速度快。系统容量几乎不受限制,不会因系统增大而出现不可预料的故障。作为信息传输介质,有大量成熟的通用设备可以选用。2.2.2电力载波传输方式 电力载波传输方式利用电力线为信息传输网,不用单独敷设线路就可实现数据信号的传输适用于新建、扩建的工程,且特别适用于改造的工程。电力载波传输方式由于电力线中电流波动,数据传输速率及数据传输的可靠性受到较大影响、效率降低。当监控设备多时,数据传输的不可靠可能会导致系统瘫痪。2.3无线射频传输方式 无线射频传输方式利用无线射频作为信息传输网,该系统不仅在功能上能完全满足要求,室内无需布线,施工简单,可以节省施工的投资,适用于新建、扩建的工程,且特别适用于改造的工程。无线射频的工作频率符合IEEE802.11b标准要求。2.3智能照明控制系统适用范围照明控制系统可以对白炽灯、日光灯、节能灯、石英灯等多种光源调光,对各种场合的灯光进行控制,满足各种环境对照明的要求。写字楼、学校、医院、工厂等场所的照明系统,利用系统的时间控制功能对灯光的开启、关闭进行自动控制,利用照度传感器使光照度自动调节,节约能源。可进行中央监控并能与建筑设备监控系统连接。剧院、会议室、俱乐部等场所利用系统调光功能及场景开关可方便地转换多种灯光场景,实现多点控制。可通过系统控制光源、空调、电扇、电动窗帘、加热器等用电设备。体育场馆比赛场地按比赛要求分级控制,大型场馆宜做到单灯控制。市政工程、广场、公园等室外公共场所利用系统的群组控制软件可控制整个区域的灯光,利用照度传感器、定时开关实现照明的自动化控制,使用系统的监控软件实现照明的智能化控制。道路照明应根据所在区域的地理位置和季节变化合理的确定开关灯时间,并根据天空亮度变化进行必要的修正,采用光控和时控相结合的智能控制方式。景观照明采用平时、一般节日、重大节日等控制模式。2.4智能照明控制系统应用的特点2.
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 合伙投资竞业书合同
- 大班数学《坐船去探险》课件
- 手足口病风趣幽默讲解
- 2024房屋修缮合同
- 小学课外活动记录20篇-20211116120635
- 2024新版家政保姆合同样本
- 2024安置房买卖合同范本(标准版)
- 2024离婚合同协议书范本范文有子女
- 2024学校食堂租赁合同
- 2024新版影视剧摄制委托贷款合同
- 学习适应性测验(AAT)
- ADS创建自己的元件库
- 探源民国时期的金融改革历史
- MATLAB仿真三相桥式整流电路(详细完美)
- 文件管理系统毕业设计论文
- 2019年重庆普通高中会考通用技术真题及答案
- 天秤座小奏鸣曲,Libra Sonatine;迪安斯,Roland Dyens(古典吉他谱)
- 钢筋混凝土工程施工及验收规范最新(完整版)
- 光缆施工规范及要求
- 三国志11全人物信息(五维、特技、生卒年等)
- 第六章 气体射流
评论
0/150
提交评论