Unfortunately, the complexity of the Marine environment and the special properties of seawater as propagating medium have placed limitations on the means of the underwater exploration.
不幸的是，由于海洋环境的复杂性和海水传播媒介的特殊性，人类探测海洋的手段受到了极大的限制。
The change in direction of a propagating wave when passing from one medium to another.
传播中的波从一种介质传入另一种介质方向发生改变的现象。
And under the condition of propagating against weak wind, most of medium-scale gravity waves can reach observation height.
而在弱逆风作用下，大部分中尺度范围重力波都能够传播到观测高度。
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