ONORM EN 21680-2-1992 Acoustics - Test code for the measurement of aiborne noise emitted by rotating electrical machinery -Survey method《声学 旋转式电动机械发出的空气噪声测量测试代码 调查法》.pdf

相关资源

IRS 70778-2-2018 Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges.pdf

IRS 70712-2018 Rail defects.pdf

IRS 50596-6-2018 Conditions for coding intermodal loading units in combined transport combined transport lines and wagons.pdf

IRS 50596-5-2018 Transport of road vehicles on wagons-Technical Organisation-Conveyance of semi-trailers with P coding or N coding on recess wagons.pdf

IESNA TM-23-2017 Lighting Control Protocols.pdf

IESNA RP-2-2017 Recommended Practice for Retail Lighting.pdf

ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

ITU-R RAPPORT M 763-3 FRENCH-1990 Signal level variation due to multipath effects and blockage by ship-s superstructure in maritime mobile-satellite service lin.pdf

ITU-R RAPPORT M 739-1 FRENCH-1986 Interference due to intermodulation products in the land mobile service between 25 and 100 MHz《由于互调产物在陆地移动服务25和100 MHz之间产生的干扰》.pdf

ITU-R RAPPORT M 319-7 FRENCH-1990 Characteristics of equipment and principles governing the assignment of frequency channels between 25 and 100 MHz for land mob.pdf

猜你喜欢

JUS N N6 394-1989 Radiocommunications Transmitters Characteristics of transmitters for frequency-modulated sound broadcasting in VHF band《无线电通讯 发射器 在VHF频段播放调频声的发射器特征》.pdf

JUS N N6 395-1984 RadiocommunicatJom Transmitters Characteristics of transmittars for single-channel radiotelephorm singlasidaband emissions with suppresed carriar used in tha fixe.pdf

JUS N N6 396-1990 Radlocomaaaicatlons Transmitters Performaoce cbaracteristlcs of television transmitters《无线电通信 发射器 电视发射器的性能》.pdf

JUS N N6 397-1990 Radiocommanicatians Transmitters Performance cbaracteristics of televisioo transposers《无线电通讯 发射机 电视变位器的性能特性》.pdf

JUS N N6 501-1989 Radiocommunications Aerials for the reception of sound and television broadcasting in the frequency range 30 MHz to 1000 MHz Terms definitions and specification o.pdf

JUS N N6 502-1989 Radiocommunications Aeriais for the reception of television and sound broadcasting in the frequency range 30 MHz to 1000 MHz Methods of measurement of electrical .pdf

JUS N N6 503-1989 Radiocommunications Aerials for the reception of television and sound broadcasting in the frequency range 30 MHz to 1000 MHz Mechanical properties and anvironment.pdf

JUS N N6 504-1989 Radiocommunications Aerials for the reception of television and sound broadcasting in the frequency range 30 MHz to 1000 MHz Limit values for electrical and mecha.pdf

JUS N N6 541-1989 Radiocomamnications Antennas Metbods of measurenent for antennas used in the mobile services Terms definitions and test conditions《无线电通信 天线 移动设备中使用的天线测量方法 术语，定义和测.pdf