The coast line changes are various in the southern and northern coasts because of their geotectonic difference.

因区域构造差异，南北岸线变化表现，一，湾顶临洪口是过渡地段。

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The coast line changes are various in the southern and northern coasts because of their geotectonic difference.

因区域构造差异，南北岸线变化表现，一，湾顶临洪口是过渡地段。

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