angle lever

例句：

1. 1.The angle of the roof is perfect for this type of window.
   屋顶的角度非常适合这种窗户。
2. 2.The angle of the blades can be adjusted to fit different tasks.
   刀片的角度可以调整以适应不同的任务。
3. 3. The angle of the table is set at a comfortable height for reading.
   桌子的角度被设定为阅读时舒适的高度。