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计算潮时的方法,在我国有悠久的历史,从现有文献资料可知:唐朝的窦叔蒙在公元770年前后所写的《海涛志》中,就提出潮时推算图。宋朝张君房(公元1010年前后)又对窦叔蒙的潮时推算图进行改进和补充。而燕肃(公元1025年)作过《海潮图》一篇。遗憾的是该图失传。不过有人认为吕昌明于至和三年(公元1056年)重订的四季潮侯表
The method of calculating tide time has a long history in our country. From the existing literature, it can be seen from the existing literature that in the “Tao of Haotao” written before and after 770 CE in the Tang Dynasty, the figure of tide time was proposed. Song Dynasty Zhang Junfang (around the year 1010) and Dou Shu Meng tide time diagram to improve and supplement. The Yan Su (1025 AD) made a “tide chart” an article. Unfortunately, the picture is lost. However, some people think that Lv Chang-ming in the three years (AD 1056) and reset the four-season wave Hou table