SIS SS 06 01 01-1979 Welding electrodes Covered electrodes for manual metal-arc welding and gravity welding of carbon steels carbon manganese steels and fine grained steels with i f.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

八年级地理下册5.1四大地理区域的划分课件新版湘教版2019011111.pptx

八年级地理下册5.2北方地区和南方地区第1课时北方地区课件新版湘教版2019011112.pptx

八年级地理下册5.2北方地区和南方地区第2课时南方地区课件新版湘教版2019011113.pptx

八年级地理下册5.3西北地区和青藏地区第1课时西北地区课件新版湘教版2019011114.pptx

八年级地理下册5.3西北地区和青藏地区第2课时青藏地区课件新版湘教版2019011115.pptx

八年级地理下册6.1东北地区的地理位置与自然环境课件新版湘教版2019011116.pptx

八年级地理下册6.1区域特征课件新版商务星球版20190118372.pptx

八年级地理下册6.2东北三饰件新版商务星球版20190118371.pptx

八年级地理下册6.2东北地区的人口与城市分布课件新版湘教版2019011117.pptx