lán mén ㄌㄢˊ ㄇㄣˊ 拦门（拦门）
长江口是巨型多沙河口，其特有的水沙运动特点，形成了长达数十公里的拦门沙区段。
The Yangtze River estuary is a large heavily sediment-laden estuary where the bar shoal with dozens of kilometers in length is formed due to its unique feature of water-sediment movement.
据此讨论了最大浑浊带与拦门沙的关系。
The relationship between the turbidity maximum and the river mouth bar is discussed.
在主航道交通繁忙的条件下进行水下爆破以炸除拦门礁。
An underwater blasting to explode the submerged reefs was performed in the condition of heavy traffic on the main channel.
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