gunjet lock

例句：

1. 1. The security guardused a gunjet lock to secure thedoor.
   保安用枪式锁把门锁上了。
2. 2. The policeman installed a gunjetlock on the front door of the house.
   警察在房子的前门安装了枪式锁。
3. 3.The thief tried to break into thelocked room with a gunjet lock.
   小偷试图用枪式锁打开锁着的房间。