【英文标准名称】:FixedRadioSystems-Point-to-pointequipment-Parametersforradiosystemforthetransmissionofdigitalsignalsoperatinginthefrequencyrange24,50GHzto29,50GHz(EndorsementoftheEnglishversionEN300431V1.3.1(2001-02)asGermanstandard
【原文标准名称】:固定无线电系统.点对点设备.在24.50GHz-29.50GHz频率范围内传输数字信号用无线电系统参数
【标准号】:DINEN300431-2003
【标准状态】:作废
【国别】:德国
【发布日期】:2003-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电信;远程通信;无线电电路;频率范围;无线电中继系统;数字信号;无线电工程;无线电装置;无线电设备;无线电通信链路;陆地的;数字工程;传输技术
【英文主题词】:telecommunications;radiolinks;radioequipment;transmissiontechnique;digitalsignals;radiocircuits;digitalengineering;terrestrial;radioengineering;radiosystems;telecommunication;frequencyranges;
【摘要】:
【中国标准分类号】:M36
【国际标准分类号】:33_060_30
【页数】:1P;A4
【正文语种】:德语


【英文标准名称】:Heatexchangers-Forcedconvectionaircooledrefrigerantcondensers-Testprocedureforestablishingperformance
【原文标准名称】:热交换器.强制对流空气冷却制冷剂冷凝器.确定性能的试验方法
【标准号】:BSEN327-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-08-15
【实施或试行日期】:2000-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:热交换器;风扇;流速计;冷却系统部件;空气流动;空气冷却器;制冷;冷却器;功率(力学);制冷剂;性能试验
【英文主题词】:Condensers;Definition;Definitions;Flowmeasurements;Heatexchangers;Heatloss;Mathematicalcalculations;Measurement;Performance;Powermeasurement(electric);Ratingtests;Refrigerants;Refrigeration;Specification(approval);Testing;Testingconditions;Thermalenvironmentsystems;Ventilationbyfans;Ventilators
【摘要】:1ThisEuropeanStandardappliestononductedforcedconvectionaircooledrefrigerantcondenserswithdryairsidesurfacewithinwhichtherefrigerantchangesphases.Itspurposeistoestablishuniformmethodsofperformanceassessment.Itdoesnotdealwithevaluationofconformity.ThisEuropeanStandarddoesnotapplytoaircooledcondensers,designedprimarilyforinstallationwithinthemachinerycompartmentofpackagedproductsorinfactory-assembledcondensingunits.ThisEuropeanStandarddoesnotapplytocondenserswithanintegralsubcoolingpart.2ThisEuropeanStandardspecifiesmethodstotestandascertainthefollowing:-productidentification;-standardcapacity;-nominalairflowrate;-nominalfanpower.3Thisstandarddoesnotcovertechnicalsafetyaspects.
【中国标准分类号】:J75
【国际标准分类号】:27_060_30
【页数】:34P;A4
【正文语种】:英语