As one side of the rocker arm moves up, the other side moves down, just like a seesaw.
As one side of the rocker arm moves up, the other side moves down, just like a seesaw.
当摇臂的一侧上升，其另一侧下降，正如一块跷跷板一样。
As one side of the rocker arm moves up, the other side moves down, just like a seesaw.
当摇臂的一侧上升，其另一侧下降，正如一块跷跷板一样。