Home / Standards / GB/T 16638.4-2008 GB/T 16638.4-2008 Active Aerodynamics - Concepts，quantities and symbols - Part 4: Aerodynamic forces，moments，their coefficients and derivatives of aircraft 空气动力学 概念、量和符号 第4部分：飞机的空气动力、力矩及其系数和导数 Standard Type GBT ICS 49.020 CCS V04 Status 现行 Issue Date 2008-07-18 Implementation 2009-01-01 Responsible Dept 国家标准委 Drafting Unit N/A