Concretely, this curl gives you the angular velocity of the rotation, well, with a factor two but that doesn't matter, and the axis of rotation, the direction of the axis of rotation. 它给出了这个旋转的角速率,有一个因子2,但没关系,给出了旋转轴,和旋转轴的方向。
The moment applied on the chip is resolved to three components along the coordinate axis and it is thought that any increase of the components will increasing the component of the chip curl in the same direction. 将作用于切屑上的力矩分解为3个分量,指出任一方向的力矩分量的增加(减少)将使切屑在相同方向的卷曲增加(减少)。