ONORM S 5033-1978 Determination of sound power levels of noise sources engineering methods for special reverberation test rooms《噪声源声功率级测定 特别混响测试室用工程法》.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

DIN 57472-808-1984 Testing of cables wires and flexible cords tinning solderability and soldering shrinkage [VDE Specification]《电缆、导线和软线的试验 镀锡、可焊性和锡焊收缩(VDE规范)》.pdf

DIN 57472-812-1984 Testing of cables wires and flexible cords continuity of metallic coatings [VDE Specification]《电缆、导线和软线的试验 金属镀层的连续性(VDE规范)》.pdf

DIN 57532-21-1982 Transformers and reactors starting transformers and starting reactors [VDE Specification]《变压器和电抗器 起动变压器和起动电抗器 (VDE 规范)》.pdf

DIN 57544-101-1983 Welding equipment and assemblies for arc welding and similar procedures safety requirements for installation [VDE Specification]《电弧焊及类似工艺用焊接设备和组件 安装的安全要求(VDE规范)》.pdf

DIN 57635-1984 Low voltage fuses D-fuses E 16 up to 25 A 500 V D-fuses up to 100 A 750 V D-fuses up to 100 A 500 V [VDE Specification]《低压熔断器 ≤25A、500V DE16熔断器 ≤100A、750V D熔断器 ≤100A.pdf

DIN 57638-1981 Low-voltage switchgears fuse-switch-units DO-system [VDE Specification]《低压开关 开关保险部件 DO系统(VDE规范)》.pdf

DIN 57680-3-1977 Specification for personnel protective equipment protective devices and apparatus for work on electrically energized systems up to 1000 V Operating rods and curren.pdf

DIN 57680-4-1980 Personnel protective equipment protective and apparatus for work on energized systems up to 1000 V part 4 fuse handles for low-tension HRC-fuses [VDE Specification.pdf

DIN 57680-7-1984 Personnel protective equipment protective devices and apparatus for work on energized systems up to 1000 V socket spanner [VDE Specification]《在≤1KV带电设备工作时用防护服、防护设备.pdf