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1·Coastal landform is changeful, much cliff, have extensive bay and beach again.

海岸地形多变，多悬崖峭壁，又有辽阔的海湾与沙滩。

2·The northern Yellow Sea muddy coast changes, the formation of coastal landform and the natural zoning of tidal flat are analysed.

分析了冰后期以来北黄海淤泥质海岸变迁及海岸地貌的形成和滩涂的自然分带。