空气阻力系数
coefficient of air resistance
air resistance coefficient
air drag coefficient
列车空气阻力
Aerodynamic drag of train
空气动力学阻抗
the Aerodynamic Resistance
Aerodynamic resistance
空气附加阻力
additional air resistance in tunnel
空气滤清器阻力表
air cleaner restriction gauge
板式空气—空气热交换器
plate-type air-air heat exchanger