NBN S 01-203-1979 8750 Acoustics - Determination of sound power levels of noise sources -Engineering methods for special reverberation test rooms《声学 声源所发出的声音音量等级的测定 特殊回音测验室的鉴定方法》.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

QB T 1391-1991 猕猴桃酱罐头.pdf

QB T 1392-1991 干装苹果罐头.pdf

QB T 1393-1991 桔子囊胞罐头.pdf

QB T 1397-1991 猴头菇罐头.pdf

QB T 1400-1991 荞头罐头.pdf

QB T 1401-1991 雪菜罐头.pdf

QB T 1402-1991 榨菜罐头.pdf

QB T 1403-1991 调味榨菜罐头.pdf

QB T 1404-1991 榨菜肉丝罐头.pdf