NBN F 51-006-1986 8750 《焊接 通过熔化进行的焊接的X线观察的建议实践 第1部分：通过厚度小于或等于50毫米的钢块的熔化进行的端对端的焊接》.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

STAS 9483-1988 LETTER SYMBOLS USED IN ELECTRONICS AND TELECOMM1T NICATIONS《用在电子和电信的字母符号 》.pdf

STAS 9484 1-1974 SILICA-ALUMINA MINING PRODUCTS Methods of physical and mechanical tests General directions《硅铝矿产品 物理和力学试验的方法 一般指南 》.pdf

STAS 9484 10-1974 SILICA-ALUMIVA MIXING PRODUCTS Methods of physical and mechanical tests Determination of sedimentation time《硅铝混合产品 物理和力学试验的方法 沉降时间的测定 》.pdf

STAS 9484 11-1992 Silicon-aluminous mining products Efficiency determination《矿产品 硅铝 效率测定》.pdf

STAS 9484 12-1974 SILICA-ALUMINA MINING PRODUCTS Methods of physical and mechanical tests Determination of whiteness《硅铝矿产品 物理和力学试验的方法 白度测定 》.pdf

STAS 9484 13-1974 SILICA-ALUMINA MINING PRODUCTS Methods of physical and mechanical tests Determination of shrinkage《硅铝矿产品 物理和力学试验的方法 收缩的测定 》.pdf

STAS 9484 14-1974 SILICA-ALUMINA MINING PRODUCTS Methods of physical and mechanical tests Determination of volume constancy《硅铝矿产品 物理和力学试验的方法 体积固定性的测定 》.pdf

STAS 9484 15-1974 SILACA-ALUMINA MINING PRODUCTS Methods of physical and mechanical tests Determination of vitrification temperature《硅铝矿产品 物理和力学试验的方法 玻璃固化温度测定》.pdf

STAS 9484 16-1974 SILICA-ALUMINA MINING PRODUCT Methods of physical and mechanical tests Determination of grinding fineness《硅铝矿产品 物理和力学试验的方法 研磨细度的测定 》.pdf