共和国成立后，废止了淋卤制盐法，并逐步完善制盐的生产设备和生产工艺。
长江是径流、潮流中等的潮汐河口，纳潮量十分巨大。
Yangtze River estuary is a tidal estuary with moderate runoff and tide. It has a huge tidal influx.
而从1934年到漩门二期围垦工程后，纳潮量减小了22.57%。
In fact, after this reclamation project, the tidal influx has reduced 22.57 % since 1934.
通过纳潮效果与纳潮闸位置，调蓄面积，操作方式等因素的关系分析，表明纳潮是一种可行且有效的方法。
Through analysis of the effectiveness related to locations. Storage area and operation of relief tidal flood, it is shown that this measurement is feasible and available.
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