A joystick allows the safe room occupant to lock and unlock doors throughout the house to trap an intruder.
控制杆可让安全密室里的人锁上或打开房子里的任何门，来捕捉入侵者。
2
Since large expanses of glass would trap the heat in this environment, the Architects devised a system of louvered wooden sliding and folding shutters for the doors and Windows.