harbor regulations

例句：

1. 1.The port has strict regulations for all vessels entering the harbor.
   该港口对所有进入港口的船只都有严格的规定。
2. 2.The new regulations have made it more difficult for ships to navigate the waters.
   新的法规使得船只在航行时更加困难。
3. 3. The harbor regulations were updated to improve safety and efficiency.
   港口规定被更新，以提升安全性和效率。