近水面水翼
hydrofoil near free surface
水面/水下监视协调官
surface/subsurface surveillance soordinator
SSSC
水面水力特征
hydrodynamic feature of surface
梯形断面水面线
water surface profiles of trapezoid
冷却空气迎面风速
cooling air face velocity
迎面风速
frontal surface wind velocity
face velocity
windward air velocity
head-on wind velocity