近水面飞行
fly close to water surface
近水面水翼
hydrofoil near free surface
水面搜察攻击单位问基准点接近之法
approach to datum by search attack unit {= approach to datum by SAU
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
β平面[近似]
plane (approximation
beta-plane (approximation
贝他平面[近似]
plane (approximation
beta-plane (approximation