drag head [机] 耙头
drag head ladder [船] 耙头梯架
active drag head [水运] 主动耙头
suction type drag head 纯吸式耙头
rotor head drag 旋翼头阻力
head-drag coefficient 头部阻力系数
fluid drag and head loss 水流阻力和水头损失
The aerodynamic shape design of train head should consider all kinds of factors because the relation between reducing aerodynamic drag and air pressure pulse may be conflictive and uniform.
减小列车空气阻力和降低列车交会压力波，既矛盾又统一，列车气动头部外形设计需要综合考虑各种因素。
Drag of the train head is obtained by the method of surface integral and drag coefficient can be computed at the same time.
通过表面积分的方法得到各种列车车头的阻力，进而计算得到了车头模型的阻力系数。
The results indicate that the head-on wind area of the TAB is the main factor in determining the drag size.
结果表明，挡流板的迎风面积是决定阻力大小的主要因素。
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