navigation lock

• 通航船闸,船闸

navigation lock的用法和样例：

例句

1. The lock keeper closed the lock gate.
   船闸管理员关上了闸门。
2. Main items and design contents of Sanhe navigation lock reinforcement project is introduced in this paper.
   介绍三河船闸加固改造的主要项目和设计内容。