NEN 5781-1992 Soil - Unsaturated zone Gravimetric determination of the water content and dry bulk density《土壤 不饱和区域 水份含量和干容重的重量法测定》.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

ITU-R BS 599 SPANISH-1982 DIRECTIVITY OF ANTENNAS FOR THE RECEPTION OF SOUND BROADCASTING IN BAND 8 (VHF)《声音广播接收天线的在频段8(甚高频VHF)方向特性 第10B部分 8(甚高频VHF)和9(UHF超高频)频段内调频声音广播》.pdf

ITU-R BS 599-1982 Directivity of Antennas for the Reception of Sound Broadcasting in Band 8 (VHF) - Section 10B - Frequency-Modulation Sound Broadcasting in Bands 8 (VHF) and 9 (UH.pdf

ITU-R BS 638 FRENCH-1986 TERMS AND DEFINITIONS USED IN FREQUENCY PLANNING FOR SOUND BROADCASTING《用于声音广播频率规划中的术语和定义 第10A-1部分 振幅调制声音广播频段5(低频LF) 6(中频MF)和7(高频HF)》.pdf

ITU-R BS 638 SPANISH-1986 TERMS AND DEFINITIONS USED IN FREQUENCY PLANNING FOR SOUND BROADCASTING《用于声音广播频率规划中的术语和定义 第10A-1部分 振幅调制声音广播频段5(低频LF) 6(中频MF)和7(高频HF)》.pdf

ITU-R BS 638-1986 Terms and Definitions Used in Frequency Planning for Sound Broadcasting - Section 10A-1 - Amplitude-Modulation Sound Broadcasting in Bands 5 (LF) 6 (MF) and 7 (HF.pdf

ITU-R BS 639 FRENCH-1986 Necessary bandwidth of emission in LF MF and HF broadcasting《低频(LF) 中频(MF)和高频(HF)广播中发射过程中所需的必要带宽 第10A-1部分 振幅调制声音广播频段5(低频LF) 6(中频MF)和7(高频HF)》.pdf

ITU-R BS 639 SPANISH-1986 Necessary bandwidth of emission in LF MF and HF broadcasting《低频(LF) 中频(MF)和高频(HF)广播中发射过程中所需的必要带宽 第10A-1部分 振幅调制声音广播频段5(低频LF) 6(中频MF)和7(高频HF)》.pdf

ITU-R BS 639-1986 Necessary Bandwidth of Emission in LF MF and HF Broadcasting - Section 10A-1 - Amplitude-Modulation Sound Broadcasting in Bands 5 (LF) 6 (MF) and 7 (HF)《低频、中频和高频广.pdf

ITU-R BS 640-3 FRENCH-1997 Single Sideband (SSB) System for HF Broadcasting《高频(HF)广播的单边带(SSB)系统》.pdf