If a pilot tries to turn with the rudder alone, centrifugal force makes the aircraft skid out the sideways.
当飞行员尝试只用方向舵转弯时，离心力就会使飞机侧滑。
2
An anti-skid layer is provided outside of the handles of the arm force steel rod and an anti-skid rope is provided at both sides of the arm force rod.
在臂力棒钢管把手外面设有一层防滑层，在臂力棒两端设有防滑脱绳。
3
With the screwdriver, the out force can be enlarged and the skid is not easy. The hand blistering can be avoided. The work efficiency is improved, and workers are protected.