4．报送内容：公司名、公司注册地、船名、IMO号、MMSI号、船型、船旗国、始发港、 目的港、计划驶入时间、计划驶出时间、船员人数（分国别）等。
A low threshold preserves detail (more leaf nodes, less compression). A high threshold merges aggressively (fewer leaves, more compression, but the image gets blocky). The grid overlay shows the quadtree structure: large cells in uniform areas, small cells where detail is preserved.
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Discord's face scanning age checks 'start of a bigger shift'
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After often years at sea, adult Atlantic salmon swim thousands of miles to return to the chalk streams where they were born.
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