NF F52-111-1990 RAILWAY FIXED EQUIPMENT U 50 POINTS AND CROSSING 《铁路固定装置 U50 道岔》.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

BS EN 61753-131-3-2011 Fibre optic interconnecting devices and passive components Performance standard Single-mode mechanical fibre splice for category U Uncontrolled environment《纤.pdf

BS EN 61753-141-2-2011 Fibre optic interconnecting devices and passive components Performance standard Fibre optic passive chromatic dispersion compensator using single-mode disperd.pdf

BS EN 61753-143-2-2013 Fibre optic interconnecting devices and passive components Performance standard Optical passive VIPA-based dispersion compensator of single-mode fibre transm.pdf

BS EN 61753-2-1-2001 Fibre optic interconnecting devices and passive components performance standard - Fibre optic connectors terminated on single-mode fibre for category U Uncontr.pdf

BS EN 61753-2-3-2001 Fibre optic interconnecting devices and passive components performance standard - Fibre optic connectors terminated on single-mode fibre for category U Non conh.pdf

BS EN 61753-381-2-2016 Fibre optic interconnecting devices and passive components Performance standard Cyclic arrayed waveguide grating Category C (controlled environment)《光纤互连器件和无.pdf

BS EN 61753-381-6-2016 Fibre optic interconnecting devices and passive components Performance standard Cyclic arrayed waveguide grating Category O (uncontrolled environment)《纤维光学互连.pdf

BS EN 61753-382-2-2016 Fibre optic interconnecting devices and passive components Performance standard Non-connectorized single-mode bidirectional G-PON-NGA WWDM devices for catego.pdf

BS EN 61754-1-2013 Fibre optic interconnecting devices and passive components Fibre optic connector interfaces General and guidance《纤维光学互连器件和无源元件 纤维光学连接器接口 总则和指南》.pdf