maritime code

例句：

1. 1. The maritime code is used to communicate with ships at sea.
   海事代码用于与海上船只进行通信。
2. 2.The maritime code is a standardized system for communication between ships and shore stations.
   海事代码是一种标准化系统，用于船舶与岸站之间的通信。
3. 3.The maritime code is essential for ensuring safe navigation in the open seas.
   海事代码对于确保在公海上安全航行至关重要。