One of the main obstacles is caused by various expression of depth datum for hydrographic data integration.

由于沿海各深度基准面的差异，使得海洋测绘数据综合处理存在一定的困难。

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One of the main obstacles is caused by various expression of depth datum for hydrographic data integration.

由于沿海各深度基准面的差异，使得海洋测绘数据综合处理存在一定的困难。

youdao