No general rules exist for the length of basins. Someone says that"the length of a basin should not exceed 2,000 meters, elsewise transportation and navigation is impeded".
长度没有一般规定。但有人说长不能超过2000米,否则就会阻碍交通。
No general rules exist for the length of basins. Someone says that"the length of a basin should not exceed 2,000 meters, elsewise transportation and navigation is impeded".
长度没有一般规定。但有人说长不能超过2000米,否则就会阻碍交通。
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