single and double action spring hinge

例句：

1. 1. The new door has asingle and double action spring hingethat makes it easy to open and close.
   新门有一个单作用和双作用弹簧铰链，这使得开关变得容易。
2. 2.The furniture was made with high-qualitymaterials, ensuring a smooth operation of thesingle and double action spring hinges.
   家具由高质量的材料制成，确保单作用和双作用弹簧铰链的操作顺畅。
3. 3.The engineer carefully tested each component ofthe spring hinge to ensure itsreliability and durability.
   工程师仔细测试了弹簧铰链的每一个组件，以确保其可靠性和耐用性。