port level

例句：

1. 1. The ship was docked at the port level for repairs.
   这艘船停靠在港口水平进行修理。
2. 2. The pilot adjusted the altitude to maintain a safe distance from the port level.
   飞行员调整了高度，以保持与港口水平的安全距离。
3. 3.The cargo ship arrived at the port level with its cargo containers stacked neatly.
   货运船抵达港口水平，其集装箱整齐堆放。