discharge sluice

例句：

1. 1. The engineer carefully designed the discharge sluice to ensure efficient water flow.
   工程师仔细设计了排水闸，以确保水流畅通。
2. 2. The construction of the new discharge sluice is expected to improve the efficiency of the river's water management system.
   新排水闸的建设预计将提高河流水管理系统的效率。
3. 3.The discharge sluice was closed for maintenance, preventing any potential flooding issues.
   排水闸因维护关闭，防止潜在的洪水问题。