In rotation, force becomes torque, mass becomes moment of inertia, and acceleration becomes angular acceleration.
在旋转时，力变成力矩，质量变成转动惯量，加速度变成角加速度。
2
Torque divided by moment of inertia is what will cause the angular acceleration, namely the derivative of angular velocity.
扭矩除以转动惯量,就会引起角加速度，也就是角速度的导数。
3
So, even though no actual gears are being changed, using the paddle-shift modulates the torque to provide the jolts of acceleration and deceleration that would happen if there were a real gearbox.