NF L90-330-2004 航天工程标准.断裂控制
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来源:标准资料网
【英文标准名称】:Spaceengineeringstandards-Fracturecontrol.
【原文标准名称】:航天工程标准.断裂控制
【标准号】:NFL90-330-2004
【标准状态】:现行
【国别】:法国
【发布日期】:2004-09-01
【实施或试行日期】:2004-09-20
【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】:裂纹检测;抗裂纹形成;定义;评定;质量保证;断裂状态;监督(认可);规范(验收);试验;裂纹;金属加工;危害;航天运输;航天安全;裂纹检验;检验;损伤;裂开;试验条件;寿命;航空航天运输;缺陷
【英文主题词】:
【摘要】:
【中国标准分类号】:V01
【国际标准分类号】:49_140
【页数】:73P;A4
【正文语种】:其他
Product Code:SAE AIR1168/2
Title:Heat and Mass Transfer and Air-Water Mixtures (STABILIZED Jul 2011)
Issuing Committee:Ac-9 Aircraft Environmental Systems Committee
Scope:Heat transfer is the transport of thermal energy from one point to another. Heat is transferred only under the influence of a temperature gradient or temperature difference. The direction of heat transfer is always from the point at the higher temperature to the point at the lower temperature, in accordance with the second law of thermodynamics. The fundamental modes of heat transfer are conduction, convectoin, and radiation. Conduction is the net transfer of energy within a fluid or solid occurring by the collisions of molecules, atoms, or electrons. Convection is the transfer of energy resulting from fluid motion. Convection involvs the processes of conduction, fluid motion, and mass transfer. Radiation is the transfer of energy from one point to another in the absence of a transporting medium. In practical applications several modes of heat transfer occur simultaneoulsy. For example, aerodynamic heating of a vehicle surface includes convection to the surface, radiation away from the surface, and conduction through the surface structure. Since the three modes of heat transfer obey different laws, a real insight into such a problem can be gained only after they have been studied separately.【英文标准名称】:Electricalkitchenmachines;blender;characteristicsofperformance,tests
【原文标准名称】:电动厨房用具.立式搅拌器.使用性能.检验
【标准号】:DIN44966-2-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-08
【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】:特性;电气工程;掺混机;检验;家用设备;家用的;家用;性能试验;混合器;炊具餐具;厨房器具;管理;试验;功能特性;适用性;家用电器;食品搅拌器;炊事机具;电气器具;持久性
【英文主题词】:
【摘要】:
【中国标准分类号】:Y68
【国际标准分类号】:5370
【页数】:3P;A4
【正文语种】:德语
