key fill gun

例句：

1. 1. The key fill gun is a device that can be used to open locked doors.
   钥匙填充枪是一种可以用于打开锁着的门的设备。
2. 2.The key fill gun was invented to help people with mobility issues.
   钥匙填充枪的发明是为了帮助那些行动不便的人。
3. 3. The key fill gun is often used in emergency situations where time is of the essence.
   在紧急情况下，钥匙填充枪经常被使用，因为时间紧迫。