cotidal map

例句：

1. 1. The cotidal current is responsiblefor the movement of the ocean'swater.
   潮汐流是海洋水流动的原因。
2. 2.The cotidal zone is where thetides are at their highest and lowest.
   潮汐区是潮汐最高和最低的地方。
3. 3. The cotidal belt is anarrow strip of land between two bodies ofwater.
   潮汐带是两个水体之间的狭窄地带。