The purpose of the cutting edge of a knife is to concentrate the force that's being applied at the handle.
刀刃的作用就是把人们用在刀把上的力集中起来。
When you push down on the handle of a knife you exert a force.
当你按下刀把时,你施加了一种力。
The results showed that: serrated knife cutting force than the scalpel cutting force is small;
结果表明:锯齿形刀的切割力比光刀的切割力小;
The results showed that: serrated knife cutting force than the scalpel cutting force is small;
结果表明:锯齿形刀的切割力比光刀的切割力小;
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