E.Snagging the lower guard on a surface below the material being cut momentarily reducing operator control.The saw can lift partially out of the cut increasing the chance of blade twist.

• 被切割材料下表面对下防护罩瞬间阻碍削弱操作者对其的控制，锯会部分升出锯口增加了锯片扭偏的机会。