tide observation

例句：

1. 1. Thescientists conducted a tide observation to study theeffects of global warming on the ocean.
   科学家们进行了潮汐观察，以研究全球变暖对海洋的影响。
2. 2. The tidal observation station is locatedat the mouth of the river, providing valuable data for flood forecasting.
   潮汐观测站位于河流入海口，为洪水预报提供宝贵数据。
3. 3. Duringthe ebb tide, the water levelin the bay is lower than during theflood tide, making it easier for shipsto navigate.
   在退潮时，海湾中的水位低于涨潮时，这使得船只更容易航行。