From the orthogonality principle in liner mean square estimation of stochastic processes, the sea factor obtained at a project site can be estimated by that at some routine hydrographic station.
依据随机过程线性均方估计的正交原理，可由水文站获得的海洋要素估计工程点的海洋要素。
The liner made good sea-way because of the fine weather.
因天气好，班轮在海上航行顺利。
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