NC 39-03-1987 National System for Scientific and Technical Information Informative-Scientific Activities Terms and Definitions《国家科学技术信息系统 信息科学活动术语和定义》.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 F1207M-1996(2007) Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric]《监测有源系统中地面阻抗的电绝缘监控器的标准规范》.pdf

ASTM F1207M-2012 Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric]《监视激活电子系统中接地电阻用电绝缘监视器的标准规范 (米制)》.pdf

ASTM F1207M-2012(2018) Standard Specification for Electrical Insulation Monitors for Monitoring Ground Resistance in Active Electrical Systems [Metric].pdf

ASTM F1209-1989(1999) Standard Guide for Ecological Considerations for the Use of Oilspill Dispersants in Freshwater and Other Inland Environments Ponds and Sloughs《在淡水和其它内陆环境、池塘及沼.pdf

ASTM F1209-2008 Standard Guide for Ecological Considerations for the Use of Oil Spill Dispersants in Freshwater and Other Inland Environments Ponds and Sloughs《在淡水和其它内陆环境、池塘及沼泽中使用浮.pdf

ASTM F1209-2014 Standard Guide for Ecological Considerations for the Use of Oil Spill Dispersants in Freshwater and Other Inland Environments Ponds and Sloughs《在淡水和其他内河环境(池塘和泥沼)使用溢.pdf

ASTM F1210-1989(1999) Standard Guide for Ecological Considerations for the Use of Oilspill Dispersants in Freshwater and Other Inland Environments Lakes and Large Water Bodies《在淡水和.pdf

ASTM F1210-2008 Standard Guide for Ecological Considerations for the Use of Oil Spill Dispersants in Freshwater and Other Inland Environments Lakes and Large Water Bodies《在淡水和其它内陆环.pdf

ASTM F1210-2014 Standard Guide for Ecological Considerations for the Use of Oil Spill Dispersants in Freshwater and Other Inland Environments Lakes and Large Water Bodies《在淡水和其他内河环.pdf