doubleacting hinge

例句：

1. 1. The double acting hinge allows the door to open smoothly andquietly.
   这种双作用铰链使门能够平滑且安静地打开。
2. 2. The double actinghinge is designed to resist wearand tear over time.
   这种双作用铰链设计用来抵抗随着时间的推移而造成的磨损。
3. 3. Thedouble acting hinge was a game-changer for the furniture industry.
   这种双作用铰链对家具行业来说是一次革命性的改变。