NF C95-210-1972 电子管质量检验.标准制造发射管和接收管的特殊规定
作者:标准资料网 时间:2024-05-15 11:01:53 浏览:8828
来源:标准资料网
【英文标准名称】:ELECTRONICTUBESWITHQUALITYCONFORMANCEPROCEDURES.TRANSMITTINGANDRECEIVINGCLASSICALTUBES.PARTICULARREQUIREMENTS.
【原文标准名称】:电子管质量检验.标准制造发射管和接收管的特殊规定
【标准号】:NFC95-210-1972
【标准状态】:作废
【国别】:法国
【发布日期】:1972-04
【实施或试行日期】:1972-04-17
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:发射管;接收管;声学试验;电子管;试验;电气试验
【英文主题词】:tests;testing;transmittertubes;receptiontubes;electricaltests;electricaltesting;electrontubes;acoustictests;acoustictesting
【摘要】:
【中国标准分类号】:L36
【国际标准分类号】:
【页数】:29P;A4
【正文语种】:其他
Product Code:SAE AIR1751
Title:Prediction Method of Lateral Attenuation of Airplane Noise During Takeoff and Landing
Issuing Committee:A-21 Aircraft Noise Measure Noise Aviation Emission Modeling
Scope: The SAE A-21 Committee on Aircraft Noise undertook in 1979 the development of a uniform and consistent method for the prediction of lateral attenuation. The project was divided into two phases: (1) A short-term phase in which correlations of flight data were made using frequency-weighted and time-integrated measures of the noise, such as Effective Perceived Noise Level (EPNL) and Sound Exposure Level (SEL), see Appendix A; and (2) A long-term phase in which the effects of various sound-propagation phenomena would include ground reflection effects, refraction effects, and airplane shielding effects, as well as other ground and engine/airplane installation effects. This Aerospace Information Report is directed to the short-term phase in order to produce an interim prediction method as soon as possible.【英文标准名称】:Telecommunications-TelephoneTerminalEquipment-TechnicalRequirementsforConnectionofTerminalEquipmenttotheTelephoneNetwork
【原文标准名称】:电信.电话终端设备.终端设备与电话网络连接的技术要求
【标准号】:ANSI/TIA-968-A-4-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:连接;设备;电信;电话设备;电话网;终端
【英文主题词】:Connections;Equipment;Telecommunications;Telephoneequipment;Telephonenetworks;Terminals
【摘要】:ThisaddendumprovideschangestoTIA-968-A,'Telecommunications-TelephoneTerminalEquipment-TechnicalRequirementsforConnectionofTerminalEquipmenttotheTelephoneNetwork.
【中国标准分类号】:M40
【国际标准分类号】:33_050_10
【页数】:
【正文语种】:英语
