lowest design navigable water level

例句：

1. 1.The ship's lowest design navigable water level is crucial for its safe operation.
   这艘船的最低设计通航水深对其安全操作至关重要。
2. 2. The engineer must ensure that the lowest design navigable water level is maintained at all times.
   工程师必须确保任何时候都维持最低设计通航水深。
3. 3. The depth of the ocean is determined by the lowest design navigable water level, which varies with the location and time of year.
   海洋的深度由最低设计通航水深决定，这取决于位置和一年中的不同时间。