两刀架反向动作时，分别夹在刀片之间的多层钢筋被剪断。
When two knife rests act towards opposite direction, the multi-layer reinforcing bars clipped respectively between the knife blades are cut off.
讲弹簧机械正常的归零作用，同时要观察屏幕右上角的三角是否有反向动作。
Stresses the normal return of the mechanical spring, while the upper right corner of the screen to observe whether the triangle has a reverse action.
随着重量的转移，上半身也全部转动，你已经为反向动作作好准备，进行下杆。
With the weight back and your upper body fully coiled, you're ready to reverse those actions and start the downswing.
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