NEN-EN 288-2-1993 Specification and qualification of welding procedures for metallic materials Part 2 Welding procedure specification for arc welding《金属焊接工艺的规范和验收 第2部分：电弧焊接的焊接程序规范》.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

ITU-R SF 357-4 FRENCH-1997 MAXIMUM ALLOWABLE VALUES OF INTERFERENCE IN A TELEPHONE CHANNEL OF AN ANALOGUE ANGLE-MODULATED RADIO-RELAY SYSTEM SHARING THE SAME FREQUENCY BANDS AS SYS.pdf

ITU-R SF 357-4 SPANISH-1997 MAXIMUM ALLOWABLE VALUES OF INTERFERENCE IN A TELEPHONE CHANNEL OF AN ANALOGUE ANGLE-MODULATED RADIO-RELAY SYSTEM SHARING THE SAME FREQUENCY BANDS AS SY.pdf

ITU-R SF 357-4-1997 Maximum Allowable Values of Interference in a Telephone Channel of an Analogue Angle-Modulated Radio-Relay System Sharing the Same Frequency Bands as Systems in.pdf

ITU-R SF 674-3-2013 Determination of the impact on the fixed service operating in the 11 7-12 2 GHz band when geostationary fixed-satellite service networks in Region 2 exceed powe域.pdf

ITU-R SF 675-4-2012 Calculation of the maximum power density (averaged over 4 kHz or 1 MHz) of angle-modulated and digital carriers《调角和数字载波的最大功率密度(平均超过4 kHz或1 MHz)计算》.pdf

ITU-R SF 765-1 FRENCH-2002 Intersection of radio-relay antenna beams with orbits used by space stations in the fixed-satellite service《卫星固定业务中空间站使用轨道和无线电中继天线波束的相交》.pdf

ITU-R SF 765-1 SPANISH-2002 Intersection of radio-relay antenna beams with orbits used by space stations in the fixed-satellite service《卫星固定业务中空间站使用轨道和无线电中继天线波束的相交》.pdf

ITU-R SF 765-1-2002 Intersection of radio-relay antenna beams with orbits used by space stations in the fixed-satellite service《固定卫星业务中空间站使用轨道的无线电中继天线束的相交》.pdf

ITU-R SF 766 FRENCH-1992 METHODS FOR DETERMINING THE EFFECTS OF INTERFERENCE ON THE PERFORMANCE AND THE AVAILABILITY OF TERRESTRIAL RADIO-RELAY SYSTEMS AND SYSTEMS IN THE FIXED-SAT.pdf