spiral planetary speed reducer

例句：

1. 1. The new car has a powerful engine and a high-performance spiral planetary speed reducer.
   这款新车拥有强大的引擎和高性能的螺旋行星减速器。
2. 2. The engineer used the spiral planetary speed reducer to increase the efficiency of the machine.
   工程师使用螺旋行星减速器来提高机器的效率。
3. 3. The spiral planetary speed reducer is crucial for maintaining the smooth operation of the transmission system.
   螺旋行星减速器对于保持传动系统平稳运行至关重要。