计算中，在连续方程中增加了一个松弛项，将模式结果向已有实测调和常数的控制点推算潮高值趋近。
A relaxation term is added to the continuity equation to nudge the calculated sea levels to the sea levels predicted at gauging stations.
为了提高天文潮推算的精度，必须采用最接近推算年份的调和常数进行潮汐推算。
In order to improve the tide prediction, it is necessary to use new tide constants obtained from the nearest tide data.
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