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一、什么叫潮汐? 浩瀚的大海和宇宙一切事物一样,永无息止地运动着。它的运动形势是多种多样的。其中有这样一种形式,就是:在一定的时间里,海面会慢慢地升起来,使岸边大片的海滩和礁石被水淹没,而在达到一定高度的时候,海面又开始下落,逐步把淹没的地方裸露出来,而后,又开始上升,并接连不断地重复着这种起落。它是那样的有规律,好像在呼吸一样。人们把这种现象叫做潮汐,同时又把海面上升的过程称为涨潮,下降的过程称为落潮;海面上升的最高点和下降的最低点分别称为高潮和低潮。
First, what is the tide? The vast sea and the universe everything, never stop moving. Its movement is diverse. There is such a form that, for a certain period of time, the sea surface will slowly rise, causing the vast beaches and reefs to be submerged in water. At a certain height, the sea surface begins to drop again and gradually The submerged areas were exposed and then began to rise again and again and again. It is so regular, as if breathing. People call this phenomenon tides, and at the same time refer to the rising process of the sea as a tidal wave. The process of descending is called ebb tide. The highest point of the sea surface rise and the lowest point of descent are respectively referred to as climax and ebb.