power type lever

例句：

1. 1. The power type lever is used to adjust the tension of a rope.
   动力类型杠杆用于调整绳索的张力。
2. 2.In engineering, the lever principle is a fundamental concept in understanding how forces are transferred.
   在工程中，杠杆原理是理解如何传递力的基本概念。
3. 3. The lever was designed to make lifting heavy objects easier and more efficient.
   这个杠杆设计用来使举重物品更容易、更高效。