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Number of entries (Data is updated on a monthly basis): 46674
GB/T 16638.2-2008
空气动力学 概念、量和符号 第2部分:坐标轴系和飞机运动状态量
Aerodynamics - Concepts,quantities and symbols - Part 2:Axis systems and aircraft motion state quantities
GB/T 16902.2-2008
Rules for the presentation of graphical symbols for use on equipment - Part 2: Form and use of arrows
GB/T 17302.1-2008
Import and export licences messages of the People's Republic of China - Part 1: Import licence message
Number of entries (Data is updated on a monthly basis): 46674