中国最浅的海——渤海 渤海海域面积77284平方公里，大陆海岸线长2668公里，平均水深18米，最大水深85米，20米以浅的海域面积占一半以上。渤海地处北温带，夏无酷暑，冬无严寒，多年平均气温10.7℃，降水量500～600毫米，海水盐度为30。
The shallow sea area of China -- Bohai Bohai sea area of 77284 square kilometers,the mainland coastline of 2668 kilometers, the average depth of 18 meters, a maximumdepth of 85 meters, 20 meters in the area of shallow waters accounted for more than half. Bohai is located in the north temperate zone, summer without heat, no cold winter,for many years the average temperature of 10.7 degrees, precipitation of 500 mm to 600 mm, water salinity is 30.
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