渤海严重污染海域面积0.3万平方公里。
Seriously polluted oceanic area in Bohai Sea occupied 3 thousand square kilometers.
21世纪是“海洋世纪”，烟台海域面积是陆域的近两倍，海洋资源得天独厚。
The 21st century is considered as "ocean century". The ocean area of Yantai is twice larger than the land area of it, which is full of rich ocean resources.
陆地面积约960万平方千米，海域面积约为473万平方千米，大陆海岸线长约1.8万千米。
It covers a land area of about 9.6 million square kilometers and a sea area of about 4.73 million square kilometers, with a mainland coastline of about 18 thousand kilometers.
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