draught tube gate

例句：

1. 1.The engineer designed a new draught tube gate for the factory's ventilation system.
   工程师为工厂的通风系统设计了一个新的通风管门。
2. 2.The construction crew installed the new draught tube gate in the tunnel to improve airflow.
   施工队在隧道中安装了新的通风管门，以改善空气流通。
3. 3.The draught tube gate is crucial for maintaining proper air circulation in the workshop.
   通风管门对于保持工作间良好空气流通至关重要。