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GB/T 11299.12-1989
卫星通信地球站无线电设备测量方法 第三部分:分系统组合测量 第二节:4～6 GHz接收系统品质因数（G/T）测量
Methods of measurement for radio equipment used insatellite earth stations--Part 3:Methods of measurements for combination of sub-systems--Section two:Measurement of the figure of merit(G/T)of the receiving system in the 4GHz to 6GHz range
GB/T 11299.13-1989
卫星通信地球站无线电设备测量方法 第三部分:分系统组合测量 第三节:频分多路复用传输的测量
Methods of measurement for radio equipment used in satellite earth stations--Part 3:Methods of measurements for combinations of sub-systems--Section three:Measurements for F.D.M. transmission
GB/T 11443.1-1989
Domestic satellite communication earth stations--General technical requirements--Part 1:Common performance
GB/T 6252-1986
Type specification for variable tuning capacitors--Type A in electronic equipments
GB/T 13877.4-2003
农林拖拉机和自走式机械封闭驾驶室 第4部分: 空气滤清器试验方法
Tractorsand self-propelled machines for agriculture and forestry--Operator enclosure environment--Part 4: Air filter element test method
GB/T 9713-1988
Information processing--Recording characteristics of instrumentation magnetic tape (includingtelemetry systems)--Interchange requirements
GB/T 9714-1988
Information processing--General purpose hubs and reels with 76mm centre hole for magnetic tape usedin interchange instrumentation applications