IEEEPESSwitchgearCommittee-AnnualReportfor2016Page12017Entity:SwitchgearCommitteeChair:PaulB.
SullivanVice-Chair:ToddIrwinSecretary:KeithFlowersImmediatePastChair:TedOlsen1.
SignificantAccomplishments:OrganizationTheSwitchgearCommitteesixtechnicalsubcommittees(HVCircuitBreakers,HVFuses,HVSwitches,LVSwitchgearDevices,RODE[ReclosersandOtherDistributionEquipment],andSwitchgearAssemblies)haveapproximately30activeworkinggroupsortaskforcespreliminarytoformationofworkinggroup.
TheSwitchgearCommitteesponsorsapproximately60standardsandhaveapproximatelyninenewstandardsindevelopment.
Thelistofactiveworkinggroupsfluctuates,withworkinggroupsdisbandedastheirprojectsarecompleted,andwithnewworkinggroupsformingonacontinuingbasis.
ThefigurebelowshowsthesixtechnicalsubcommitteeplustheSwitchgearCommitteeAdministrativeSubcommittee(ADSCOM)andEducation,Recognition,andPublicationSubcommittee(ERP).
IEEEPowerandEnergySocietyEntityAnnualReportIEEEPESSwitchgearCommittee-AnnualReportfor2016Page2Attheendof2017,Committeeofficersrotatedaccordingtonormalpractice.
SelectionofanewSecretary/Treasureriscomplete.
StandardsActivitiesAnactiveplanisinplacetoreviseanyandallrelevantstandardsthataredueforadministrativewithdrawalattheendof2018,tocomplywiththechangesenactedbyIEEE-SAin2008thatendedreaffirmationsandimposedarequirementtoreviseorwithdrawstandardsthatwerenotrevisedwithintenyearsofapproval.
Whilesomeworkremains,allofthedocumentsduetoexpireattheendof2018willberevisedbeforetheyexpire.
TheSwitchgearCommitteeactivelyworkstoharmonizerequirementsinvariousstandardswiththerequirementsoftherelevantIECstandards.
Atpresent,requirementsforHVcircuitbreakersarefundamentallyharmonizedalthoughnotinterchangeablewithIEC.
RequirementsforotherportionsoftheSwitchgearCommitteestandardsareharmonizedwithIECtovaryingdegrees,determinedprimarilybydifferencesintheuserpracticesbetweentheIECandANSI/IEEEmarkets.
TheSwitchgearCommitteeP&PforstandardsdevelopmentwereacceptedbyIEEE-SAinDecember,2012.
TheWorkingGroupP&PwerecreatedusingthePESTechnicalCounciltemplateinSeptember,2013,andfoundtobewithoutissuebyAudComandtheIEEE-SAStandardsBoardinDecember,2013.
TheoperatingproceduresforthecommitteewereapprovedbythecommitteeatitsApril2015meetingandwereapprovedbythePESTechnicalCouncilinAugust,2015.
TheSwitchgearCommitteeP&PwasupdatedintheFallof2017andsenttoAUDCOMforreview/approval.
TedOlsen(ImmediatePastChair)isleadingthatworkfortheCommittee.
In2017,tenstandards,guides,orrecommendedpracticesupdatedorcreatedbytheSwitchgearCommittee,orco-sponsoredbytheSwitchgearCommitteewereapprovedbytheStandardsBoard.
Theapproveddocumentsandthesubcommitteeresponsibleforthedocumentrevisionsareshownbelow.
HighVoltageCircuitBreakersSubcommittee62271-37-013-2015/Cor1–IEEE/IECInternationalStandardforHigh-VoltageSwitchgearandControlgear–Part37-013:AlternatingCurrentGeneratorCircuitBreakers–Corrigendum1HighVoltageFusesSubcommitteeC37.
14-2016Cor.
1–IEEEStandardDesignTestsforHigh-Voltage(>1000V)FusesandAccessoriesHighVoltageSwitchesSubcommitteeC37.
30.
1a–IEEEStandardRequirementsforACHigh-VoltageAirSwitchesRatedAbove1000V–Amendment1SwitchgearAssembliesSubcommitteeC37.
20.
7–IEEEGuideforTestingSwitchgearRatedUpto52kVforInternalArcingFaultsC37.
21–IEEEStandardforControlSwitchboardsC37.
24–IEEEGuideforEvaluatingtheEffectofSolarRadiationonOutdoorMetal-EnclosedSwitchgearIEEEPESSwitchgearCommittee-AnnualReportfor2016Page3C37.
81–IEEEGuideforSeismicQualificationofClassiEMetal-EnclosedPowerSwitchgearAssembliesC38.
82–IEEStandardfortheQualificationofSwitchgearAssembliesforClass1EApplicationsinNuclearPowerGeneratingStationsWeexpectacomparablelevelofpublishedstandardsdocumentsin2018.
InearlyJanuary2018,theCommitteehad25activestandardsworkinggroups.
ThepublicationofC37.
20.
7wasamajoraccomplishment.
TheGuidewasexpandedtoincludeinternalarcingfaulttestsforlow-voltagemotorcontrolcenters,switchboards,medium-voltageaccontrollers,metal-enclosedbus,metal-enclosedmedium-voltageoutdoorcircuitbreakers,andgas-insulatedswitchgear.
ThisGuidehasadirectimpactonthesafetyofpersonnelwhointeractwiththeequipmentincludedintheGuide.
SomeofourmembersaresignificantcontributorstotheIEEEStandardsAssociationgovernanceprocess.
TedBurseandDougEdwardsweremembersofthe2017StandardsBoard.
DougEdwardswasamemberofAUDCOMandREVCOM.
TedBursewasamemberofNESCOMandtheChairofPROCOM.
FinancialTheSwitchgearCommitteeplansandexecutestheirownmeetingswithsupportfromIEEEMECteamforhotelcontractnegotiation.
Revenuecomesfromregistrationfeeschargesattendeesandfromsupportfromcorporations.
Expensesarethoserelatedtomeetings(catering,audio/visual,socialevents,andsimilar.
)TheSwitchgearCommitteeisinsoundfinancialcondition.
ThisisasignificantimprovementovertheCommitteefinancialconditionlessthan10yearsago.
TheTreasurerprovidesmonthlyreportstoCommitteeofficerstoreportonthehealthoftheCommittee.
Discrepanciesinanyaccountarequicklyidentifiedandresolved.
TheCommitteehasenoughfinancialreservestohandlevaryingmeetingcommitments.
MeetingsTheSwitchgearCommitteeholdstwomeetingseachyear,oneintheSpringandoneintheFall.
Attendanceatthesemeetingsisonanupwardtrend,risingfromaround110participantsin2003toapproximately250peopleatrecentmeetings.
TheSwitchgearCommitteehasanover4%annualincreaseinmeetingattendancesincetheCommitteestartedtrackingattendancein2004.
TheSwitchgearCommitteemeetsoutsidetheJCTMandPESGeneralMeetingandthereforeplanstheirownmeetings.
Contractshavebeensignedforthenextseven,asshownbelow:Spring2018April22-26,2018Disney'sContemporaryResortLakeBuenaVista,FLFall2018October13-18,2018KansasCityMarriottKansasCityMOSpring2019April28-May3,2019HiltonBurlingtonIEEEPESSwitchgearCommittee-AnnualReportfor2016Page4IEEEPESSwitchgearCommittee-AnnualReportfor2016Page5Burlington,VTFall2019October6-10,2019CatamaranResortHotelSanDiego,CASpring2020May4-7,2020PeppermillResortRenoLVFall2020October3-8,2020SheratonFortWorthFortWorthTXSpring2021April19-22,2021HiltonCharlotteUniversityCharlotteNCTheSwitchgearCommitteemeetingplanningprocessnowusesresourcesfromtheIEEEMeetings,Conferences,andEvents(MCE)organization.
MCEpersonnelassistwiththefollowing:Developmentofmeetingspecificationasbasicforrequestforproposal(RFP).
DistributeRFQtomeetingfacility/hotelpropertieswheretheSwitchgearCommitteewantstoholdameeting.
Performinganinitialreviewofallreceivedproposals.
Assistingwithfinalcontractnegotiationswiththechosenmeetingfacility/hotelproperty.
CoordinatingIEEELegalofallSwitchgearCommitteecontractsformeetingvenuesorotheractivities(suchassocialeventsheldoutsideofthemeetingvenues.
)UsingtheIEEEMCEgrouphasbeenasignificantbenefittotheSwitchgearCommitteeinthefollowingways.
ReducesworkloadoftheSwitchgearCommitteeVice-Chairwhoisresponsibleforallmeetingrelatedcontracts.
EnsurestheproperlegalreviewsofallcontractstheSwitchgearCommitteemayenter.
HelpleverageIEEEbuyingpowerbyknowingmeetingvenueswhereIEEEhasacompetitiveadvantage.
TheSwitchgearCommitteehighlyrecommendsotherPESTechnicalCouncilCommitteesconsiderusingIEEEMCEintheireventplanningprocess.
WebsiteTheSwitchgearCommitteewebsitecontinuestobeupdatedtoamoreinterestingformatandcontinuestoincludeaccesstominutesofpastmeetings(from1990todate),andmanytechnicalpresentations.
AtemplatewascreatedthattheSwitchgearCommitteeSubcommitteesusetosubmitupdatedinformationtothewebmastertousetoupdatetheSubcommitteewebsite.
ThetemplatehasprovidedamucheasierandstandardizedmethodforSubcommitteetosubmitupdates.
CentralDesktopSwitchgearCommitteeofficersusesCentralDesktoptostoreimportantCommitteerelateddocumentsincludingitemssuchasmeetingcontracts,meetingplanninginformation,andCommitteeprocedures.
UsingCentralDesktoptostorethisinformationensureseachofficerhasaccesstothedocumentsthatofficermayneed.
Thisreducestheneedtocontactotherofficersandrequestspecificinformation.
IEEEPESSwitchgearCommittee-AnnualReportfor2016Page6TheofficershavefoundthatusingCentralDesktopisanexcellenttoolandhighlyrecommendsotherTechnicalCouncilCommitteesalsoconsideringusingit.
OurStandardsAssociationcontact(ErinSpiewak)cancreateanaccountforanycommitteethatneedsone.
SubcommitteeWorkEachoftheSwitchgearCommitteeSubcommitteesperformsasignificantamountofworktoensuretheirstandardsarerevisedattheproperfrequencyandtocontributetootheractivities.
BelowaresomeexamplesofsomespecificSubcommitteeactivitiesthatwewishtohighlight.
-HVCB–Theycreatedataskforcetostudyshuntreactor(inductiveload)switching.
TheresultsofthattaskforcewillbeusedtohelpimproveHVCBstandards.
-ADSCOM–NenadUzelacleadanefforttocreateanewSwitchgearSubcommitteeforTechnologyandInnovation.
ThatSubcommitteewillbeincludedintheSwitchgearCommitteeOperatingManualandwillhavetheirinitialmeetingattheSpring2018Committeemeeting.
-RODE–CreatedajointtaskforcewiththeIEEESubstationCommitteetoinvestigatethestateoftheartofalternativegasesusedforinsulationinswitchgear.
A120pagetechnicalreportwascreatedandpresentedtothecommitteemembers.
ThereportisalsobeingpublishedinIEEEXplore.
-RODE–Createdanewtaskforceonreclosercontrolcables.
TheinformationfromthetaskforcewillbeincludeinfuturerevisionsofRODEsponsoredstandards.
2.
BenefitstoIndustryandPESMembersfromtheCommitteeWork:TheSwitchgearCommitteecreatesandmaintainsstandardsthatbenefitthestakeholdersinmanyways,includingthese:Users,producers,testingfirms,andthird-partycertificationbodiesbenefitbyhavingperformancerequirementsthatareconsistentandthatgiveconfidencethatproductscarryingequalratingsexhibitequalperformance.
Usersandproducersbenefitbyhavingknownperformance-orientedrequirementsratherthanroteconstructionmandated(butnotnecessarilyperformance-oriented)requirements.
Thisallowsproducerstointroducenewtechnologiesthatproduceequalperformancewithoutconflictingwitharbitrarystandards-mandatedconstructionrequirements.
Users,producers,testingfirms,andthird-partycertificationbodiesbenefitfromhavingrelativelystablestandardsforproducts,asrevisionsofstandardsaregenerallymadeexceptatintervalsofseventotenyears.
Users,producers,testingfirms,andthird-partycertificationbodiesbenefitfromthecreationofnewstandardscoveringareaspreviouslynotaddressedinstandards,suchastestingofequipmentunderconditionsofinternalarcingfaults,specialinterruptingapplicationssuchastransformer-limitedfaults,andconversionsofexistingequipmenttoaccommodatenewertechnologies.
Theguideforinternalarcingtestsisparticularlysignificantasthedocument(C37.
20.
7)hasbeenexpandedovertheyearstocoversignificantlymoreequipmentvarieties,providingaconsistentsetoftestingrequirementsoverarangeofproducttypes.
IEEEPESSwitchgearCommittee-AnnualReportfor2016Page73.
BenefitstoVolunteerParticipantsfromtheCommitteeWork:Participationinstandardsactivitiesprovidesasolidbasisforeducationofnewparticipants,whileprovidingaforumtocapturetheknowledgeofexperiencedparticipants.
TheSwitchgearCommitteehasparticipationbyasignificantnumberofpersonswhohaveformallyretiredfromthebusinessworld,yetcontinuetoparticipate,inseveralcaseswithoutfinancialsupportfromtheirformeremployerorsomeotherfirm.
Itisreasonabletosurmisethatsuchindividualswouldnotdosoexceptthatparticipationprovidesthemsomemeasureofsatisfaction.
Participantsinthestandardsprocessbenefitfromrecognitionwithintheiremployerorganizationsas"experts"intheirtechnicalfield,andparticularlyiftheyparticipateinsomeofficercapacityinworkinggroupsorinthecommitteestructure.
TheSwitchgearCommitteeprovidesrecognitiontoworkinggroupmembersandcommitteeofficers,typicallywithaplaque.
Whenstandardsarepublished,theparticipantsarealsorecognizedinthefrontmatterofthedocument.
TutorialsareprovidedateachSwitchgearCommitteemeeting.
Thisprovidesmeetingparticipantstogetfreetrainingoncurrenttopics.
SwitchgearCommitteememberswhoareexpertsintheirfieldtypicallyprovidethetraining.
TheSwitchgearCommitteerecommendsthatthepromotionofsuchbenefitstopotentialparticipants,particularlyuserswhostruggletosecuremanagementsupportforCommitteeactivities,bothfinancialandtime.
TheSwitchgearCommitteehastakenactiontosupportparticipantswithasimpleone-page"brochure"detailingthevirtuesofCommitteeparticipationaswellasajustificationlettertemplatethatmaybeusedbyparticipants.
4.
RecognitionofOutstandingPerformance:Education,Recognition,andPublication(ERP)Subcommitteeoverseesalltheactivitiesrelatedtonominations,recognitions,awards,prizes,andcertificatesofappreciationforexceptionalindividualsandgroups.
AnnuallyERPconsidersnominationsforthefollowingawards:PESPrizePaperawardPESOutstandingWGawardPESAwardforoutstandingStandardorGuideTCawardforprizepaperTCawardforoutstandingservicetotheCommitteeTCawardforoutstandingWorkingGroup.
TheWorkingGroupforIEEEStdC37.
14receivedthePESTechnicalCommitteeWorkingGroupaward.
In2017weelevated14newpeopletomembersoftheSwitchgearCommittee.
ThiswasinrecognitionofthecontributionsfromeachindividualalongwithrecommendationsfromSubcommitteeChairs.
WealsoelevatedthreepeopletoHonoraryMember.
Inadditionalloutgoingofficers,includingsubcommitteechairs,arepresentedwithcertificatesofappreciation.
ERPstimulatesandencouragesnominationsforSeniorMembershipofIEEEandIEEEFellows.
ArecentpushtoencourageCommitteememberstobecomeSeniorMembershasresultedinnumerouspeopleIEEEPESSwitchgearCommittee-AnnualReportfor2016Page8receivingthataccomplishment.
NineteenSwitchgearCommitteepeoplewereelevatedtoSeniorMemberin2017.
SeniorMembersarerecognizedthroughspecialribbonsonnamebadgeswornduringtheCommitteefacetofacemeetings.
ERPcontinuestoworktonominateappropriateSwitchgearCommitteeattendeesforIEEEFellow.
Inaddition,ERPoverseesthepaperreviewprocessforallpapersthatrelatetoSwitchgearCommitteetechnicalareas,whetherforconferencessuchastheIEEEPEST&D,thePESGeneralMeeting,forTransactions,orotherpublications.
5.
CoordinationwithOtherEntities(PESCommittees,CIGRE,standards,etc.
):SwitchgearCommitteekeepsacloseliaisonwithCIGREStudyCommitteeA3(HighVoltageEquipment).
NenadUzelacisanofficialUSRepresentativetoCIGRESCA3aswellastheliaisonbetweenIEEESwitchgearCommitteeandCIGREA3.
AnumberofprojectsandstandardsareinprocessorpublishedthatarejointeffortswithotherIEEEPESsponsorsorwiththeIEC.
Amongtheseare:IEC62271-111/IEEEC37.
60,duallogoIEEE/IEC,Highvoltageswitchgearandcontrolgear–Part111:Overhead,pad-mounted,dryvault,andsubmersibleautomaticcircuitreclosersandfaultinterruptersforalternatingcurrentsystemsupto38kV.
(revisioninprocess)PC37.
20.
9,MetalEnclosedSwitchgearRated1kVto52kVIncorporatingGasInsulationSystems,co-sponsoredbyIEEEPESSubstationsCommittee(projectinprocess)C37.
122,HighVoltageGas-InsulatedSubstationsRatedAbove52kV,sponsoredbyIEEEPESSubstationsCommittee,co-sponsoredbyIEEEPESSwitchgearCommittee.
IEC62271-37-082,duallogo,IEEE/IEC,High-voltageswitchgearandcontrolgear-Part37-082:Measurementofsoundpressurelevelsonalternatingcurrentcircuit-breakers.
IEEEC37.
301,PartialDischargeMeasurements.
AworkinggrouphasbeenformedandPARwillbesubmittedforreviewandupdateofthisdocument.
MembersfromHVTTparticipatedinthefirstWGmeetingandhavebeeninvitedtotakeanactiveroleintheWG.
6.
NewTechnologiesofInteresttotheCommittee:Thecommitteehasseveralprojectsortaskforcesinvolvedinnewtechnologies:DavidPeelo,HVCBSubcommitteemember,presentedatutorialtitledShuntReactorSwitching;TheoryandPracticeattheIEEEPEST&DConference.
ThattutorialwassponsoredbytheSwitchgearCommittee.
Thesoliddielectrictaskforce(SDTF)isexploringmaterials,applicationandenvironmentalconditions,andtestsfornewinsulationsystemsinwhichinsulationismoldedasanintegralelementofanassemblythatincludestheinterruptingorswitchingdevice,e.
g.
,suchasforanoutdoordistributionrecloser.
Thetaskforceanticipatesissuingtheirfinalreportinthenearfuture.
Taskforceforcontrolsfordistributionequipmentisdevelopingatechnicalreportwithrecommendationsformicroprocessor-basedcontrolsforequipmentover1000Vacupto38kVacforoverheadandundergrounddistributionlines,includingtestandapplicationinformation.
Suchcontrolstypicallywouldincludetheprotectionassociatedwiththeswitchingdevice,aswellastheIEEEPESSwitchgearCommittee-AnnualReportfor2016Page9controlsdevices(open,close,etc.
)withcommunicationscapability.
Thecontroldevicewouldserveinplaceoftraditionalrelaysandcontroldevicesthatareappropriateforhighvoltagecircuitbreakersbutnotsuitablefordistributionequipmentmountedonpowerpolesorbelowgrade.
CompletionofthereportisanticipatedintheSpringof2016.
DuetoincreasinginterestinSF6-freesolutionsforhighvoltageswitchgearaswellaspromisingdevelopmentsinavailabletechnology,theCommitteehasformedaTFonAlternativeGasses.
Theobjectiveofthetaskforceistocreateawrittenreport(whitepaperformat)andpresentbacktoSGADSCOMin2017.
Thescopeofworkoftaskforceislimitedto:LiteratureReview(lasttwoyears),Outlineaspectsforconsideration(technical,environmental,safety…),reviewofIEC,CIGRE,CurrentZeroclubactivitiesonalternativegasses,reviewIEEEstandards–aretheytransferabletonon-SF6andrecommendationforthenextsteps.
Astudygrouphasbeenformedtoreviewpotentialneedforatechnologyandinnovationsubcommittee.
ThestatedgoalistoreviewwaytoaddresstheSwitchgearCommitteeactivities,OrganizeTechnicalSessions,PrepareandReviewTechnicalPapersandFurthertheArtofpowerengineering.
ThestudygroupreportedtoADSCOMandbelievestheformationofthenewSubcommitteewouldbenefittheCommittee.
TheSwitchgearCommitteeOperatingandProceduresmanualwillbeupdatedwiththescopeofthisnewsubcommitteeandsubmittedtothePESTechnicalCouncilforreview/approval.
7.
SignificantPlansfortheNextPeriod:TheCommitteehasthefollowingsignificantplansfor2018.
ContinuetomaintainfinancialstabilityoftheCommittee.
ContinuetoplanandholdtwofacetofaceCommitteeeachyearatlocationsthatattractmeetingparticipation.
UpdatetheCommitteeP&PforstandardsdevelopmentwhentherevisedP&Ptemplateisavailable.
ThecurrentCommitteeP&PwasapprovedinDecember2012andisrequiredtobeupdatedatleastevery5years.
TheCommitteewillsubmitanupdateP&PoncethePESTechnicalCouncilissuesanewP&PnewtemplateandtheCommitteecanenterappropriateCommitteeinformation.
TedOlsen,SwitchgearCommitteeImmediatePastChair,hascontributedsignificantlytothedevelopmentofarevisedP&P.
Continuetomonitorstandardsscheduledforwithdrawalin2018toassurethatongoingprojectsarecompletedbeforewithdrawal.
CurrentlyallCommitteesponsoredstandardsareontrackforrevisionbeforetheendof2018.
Workwithselectedsubcommitteeshavingaheavyworkloadofstandardstoberevisedtoassurethattheworkloadcanbehandledwithintheavailableresourcesandtime.
Thisrequiresthatprojectsneedtobecompletedwithinthefour-yearvalidityofaPAR.
ContinueworktofurthermarketCommitteemeetingparticipationinthestandardsdevelopmentprocess.
Committeegrowthhasaveragedover5%annualincreaseforover10yearswithattendanceofapproximately250peopleatrecentmeetings.
8.
GlobalInvolvementPESislookingtoincreaseinvolvementwithmembersfromRegions8,9and10(Africa,Europe,MiddleEast,LatinAmerica,AsiaandPacific).
Pleaseprovidethefollowinginformation.
IEEEPESSwitchgearCommittee-AnnualReportfor2016Page10TotalNumberofcommitteemembersOfficersfromregions8,9and10Subcommitteeofficersfromregions8,9and10Subcommitteemembersfromregions8,9,and1070000Submittedby:PaulB.
Sullivan,ChairIEEEPESSwitchgearCommitteeDate:March8,2018
PQ.hosting怎么样?PQ.hosting是一家俄罗斯商家,正规公司,主要提供KVM VPS和独立服务器,VPS数据中心有香港HE、俄罗斯莫斯科DataPro、乌克兰VOLIA、拉脱维亚、荷兰Serverius、摩尔多瓦Alexhost、德国等。部分配置有变化,同时开通Paypal付款。香港、乌克兰、德国、斯洛伐克、捷克等为NVMe硬盘。香港为HE线路,三网绕美(不太建议香港)。免费支持wi...
全球独立服务器、站群多IP服务器、VPS(哪个国家都有),香港、美国、日本、韩国、新加坡、越南、泰国、加拿大、英国、德国、法国等等99元起步,湘南科技郴州市湘南科技有限公司官方网址:www.xiangnankeji.cn产品内容:全球独立服务器、站群多IP服务器、VPS(哪个国家都有),香港、美国、日本、韩国、新加坡、越南、泰国、加拿大、英国、德国、法国等等99元起步,湘南科技VPS价格表:独立服...
spinservers是Majestic Hosting Solutions LLC旗下站点,主要提供国外服务器租用和Hybrid Dedicated等产品的商家,数据中心包括美国达拉斯和圣何塞机房,机器一般10Gbps端口带宽,高配置硬件,支持使用PayPal、信用卡、支付宝或者微信等付款方式。目前,商家针对部分服务器提供优惠码,优惠后达拉斯机房服务器最低每月89美元起,圣何塞机房服务器最低每月...
powerbydedecms为你推荐
操作httpproceduresns支付宝蜻蜓发布想做支付宝蜻蜓刷脸支付的代理么?怎么做?360邮箱lin.long.an@360.com是什么邮箱tumblr上不去安卓手机版steam打不开是为什么即时通平台寻找娱乐高科技产品可信网站可信网站 是自己去注册的还是由做网站 的人帮弄的?oscommerceOscommerce,Magento, Zen-cart 比较,哪个好一点!财务单据会计里各种票据的定义及区分网上支付功能网银有什么功能?
vps安全设置 vps虚拟服务器 免费二级域名申请 3322动态域名 liquidweb mach 国外私服 shopex空间 42u标准机柜尺寸 174.127.195.202 好看的留言 万网优惠券 地址大全 长沙服务器 空间出租 北京双线机房 php空间推荐 t云 香港亚马逊 免费的asp空间 更多