elbow type lock

例句：

1. 1. The car has a special elbow-type lock to prevent theft.
   这辆车有一个特殊的肘部锁定装置以防止盗窃。
2. 2. The security guard used his elbow-type lock to secure the door.
   保安用他的肘部锁定装置来锁门。
3. 3. The engineer designed an elbow-type lock for the safe.
   工程师为保险箱设计了一个肘部锁定装置。