Velocity and salinity(or density) differences between the wake area and non-wake area of a surface ship may be measured with an electric conductivity probe.

在舰船尾流区与非尾流区之间存在显著的速度差和盐度（或密度）差，利用电导率探头可获得对应于这些差别的尾流电导率信号。

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The United States demonstrated the capability to launch a ballistic missile from a surface ship nearly forty years ago.

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The DDG 1000 is a multimission surface ship designed to provide advanced land attack capability and contribute to military dominance in the shallow coastal waters known as the littorals.

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To pluck them from the ocean, Bezos used Remotely Operated Vehicles (underwater drones) operated from a command ship on the surface.

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