NC 90-20-12-1989 Standards System for Metrological Assurance Reference Standard Samples Standardized Metrological Characteristics《计量保证标准体系 样本参考标准 标准化度量特性》.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

DIN EN 50326-2003 Conductors for overhead lines - Characteristics of greases German version EN 50326 2002《架空线路导线 润滑脂特性 德文版本 EN 50326 2002》.pdf

DIN EN 50329 Berichtigung 1-2010 Railway applications - Fixed installations - Traction transformers German version EN 50329 2003 Corrigendum to DIN EN 50329 (VDE 0115-329) 2003-09 .pdf

DIN EN 50329-2011 Railway applications - Fixed installations - Traction transformers German version EN 50329 2003 + A1 2010《轨道交通 固定式装置 牵引变压器 德文版本EN 50329-2003 + A1-2010》.pdf

DIN EN 50332-1-2014 Sound system equipment Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 1 General m.pdf

DIN EN 50332-2-2014 Sound system equipment Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 2 Matching .pdf

DIN EN 50334-2001 Marking by inscription for the identification of cores of electric cables German version EN 50334 2001《电缆芯线识别用符号标记 德文版本 EN 50334 2001》.pdf

DIN EN 50336-2002 Bushings for transformer and reactor cable boxes not exceeding 36 kV German version EN 50336 2002《不超过36kV的变压器和电抗器电缆箱用套管 德文版本 EN 50336 2002》.pdf

DIN EN 50340-2011 Hydraulic cable cutting devices - Devices to be used on electrical installations with nominal voltage up to AC 30 kV German version EN 50340 2010《液压电缆切割装置 标称交流电压为.pdf

DIN EN 50341-1-2013 Overhead electrical lines exceeding AC 1 kV Part 1 General requirements - Common specifications German version EN 50341-1 2012《交流电超过1 KV的架空电线 第1部分 一般要求 通用规范 德文版.pdf