two-speed adapter lever

例句：

1. 1.This two-speed adapter lever allows you to switch between two speeds quickly and easily.
   这个双速适配器杆可以让你快速轻松地在两种速度之间切换。
2. 2.The two-speed adapter lever is essential for those who work with heavy machinery.
   双速适配器杆对于使用重型机械的人来说是必需的。
3. 3. The two-speed adapter lever ensures that the machine can operate smoothly even when the power is low.
   双速适配器杆确保即使在电力低的情况下，机器也能平稳运行。