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在海港工程、航道、船坞以及其它工程建设的规划、设计和施工中,常常要求提供在历时不短于某数值t的时段内,潮位连续高于或低于某数值H_t的出现频率P;或者相反,在一定历时t和频率P的条件下要求确定潮位H_t,这就是通常所说的乘高、低潮水位问题。它不仅可以利用潮水减少港口、
In the planning, design and construction of harbor works, navigation lanes, docks and other construction projects, it is often required to provide the appearance frequency P for which the tide level is continuously above or below a certain value H_t for a period lasting not less than a certain value t; or On the contrary, it is required to determine the tide level H_t under a certain period of time t and frequency P, which is commonly referred to as the problem of multiplying high and low tides. It can not only make use of the tide to reduce the port,