NBN-EN 61102-1994 2500 Measurement and characterisation of ultrasonic fields using hydrophones in the frequency range 0 5 MHz to 15 MHz《采用频率范围为0 5MHz至15MHz的水听器对超声场的测量和特性记述》.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

ASTM A832 A832M-2017 Standard Specification for Pressure Vessel Plates Alloy Steel Chromium-Molybdenum-Vanadium《铬钼钒合金钢压力容器板的标准规格》.pdf

ASTM A833-1984(2001) Standard Practice for Indentation Hardness of Metallic Materials by Comparison Hardness Testers《用比较硬度测试仪测量金属材料的压痕硬性》.pdf

ASTM A833-2008 Standard Practice for Indentation Hardness of Metallic Materials by Comparison Hardness Testers.pdf

ASTM A833-2008a Standard Practice for Indentation Hardness of Metallic Materials by Comparison Hardness Testers《用比较硬度测试仪测量金属材料的压痕硬性的标准实施规程》.pdf

ASTM A833-2008a(2014) Standard Practice for Indentation Hardness of Metallic Materials by Comparison Hardness Testers《用比较硬度测试仪确定金属材料压痕硬度的标准规格》.pdf

ASTM A833-2017 Standard Test Method for Indentation Hardness of Metallic Materials by Comparison Hardness Testers《用比较硬度测试仪确定金属材料压痕硬度的标准试验方法》.pdf

ASTM A834-1995(2006) Standard Specification for Common Requirements for Iron Castings for General Industrial Use《一般工业用的普通要求的铸铁的标准规范》.pdf

ASTM A834-1995(2011) Standard Specification for Common Requirements for Iron Castings for General Industrial Use《普通工业用铁铸件的一般要求的标准规格》.pdf

ASTM A834-1995(2015) Standard Specification for Common Requirements for Iron Castings for General Industrial Use《一般工业用铸铁件通用要求的标准规格》.pdf