wormgear

例句：

1. 1. The car's engine is running smoothly with the new wormgear installed.
   安装新的传动装置后，汽车发动机运行平稳。
2. 2. The engineer had to replace the old wormgear with a more efficient one.
   工程师不得不用更高效的传动装置替换旧的。
3. 3.The wormgear in the transmission has been causing problems for years.
   传动装置中的蜗轮多年来一直有问题。