spiroid gear pair

例句：

1. 1. The engineer designed a new spiral gear pair for the machine.
   工程师为机器设计了一种新的螺旋齿轮配对。
2. 2.The gear pair is essential for the smooth operation of the transmission system.
   齿轮配对对于传动系统的平稳运行至关重要。
3. 3. The gear pair was tested under various load conditions to ensure its durability.
   齿轮配对在不同的负载条件下进行了测试，以确保其耐用性。