half-opened corner joint

例句：

1. 1.The half-opened corner joint was holding the door together.
   这个半开式角落接头正在把门粘合在一起。
2. 2. The engineer had to replace the half-opened corner joint with a new one.
   工程师不得不用一个新的来替换那个半开的角落接头。
3. 3.The construction workers were working on the half-opened corner joint of the bridge.
   建筑工人正在桥的半开式角落接头处工作。