blanking gate

例句：

1. 1. The engineer used a blanking gate to block the passage of people.
   工程师使用一个挡板来阻挡人们通行。
2. 2.The factory had to shut down due to a broken blanking gate.
   由于一个破损的挡板，工厂不得不关闭。
3. 3.The construction workers were using a blanking gate to reinforce the wall.
   建筑工人正在使用一个挡板加固墙壁。