knife edge
刀口；刃状物
同义词
参考例子
1.The secret of successfully pressed hems is to use very little pressure so that the edge is not flattened to produce a knife edge .
成功熨烫底边的窍门是用很小的压力，这样就不会倒伏而产生一条刃形边缘。
2.We also analyse different interpolating methods , knife edge, gray-draw, height, angle which effect Modulated Transfer Function(MTF).
我们主要分析了不同的插值方法，刀口，灰度拉伸，高度，角度对MTF的影响。
3.Before Richard died, she had never tried to call Kincaid or to write, either, though she had balanced on the knife edge of it every day for years.
理查德死之前，她从来没有设法给金凯打过电话或者写过信，尽管多少年来她每天都在刀刃边缘上权衡。
英文解释
n.
1.the sharp cutting side of the blade of a knife
网络释义
knife edge
刀口; 刀棱; 插刀式砌口; 直尺;
knife-edge bearing
刃形支承,刃支承,刀口承; 刃形支承，刃支承，刀口承; 刃形支承, 刃支承, 刀口承; 刃形支承浮动接头，刃支承，刀口承;
knife-edge
刃形支承，刀刃，刀边; 刀口，刀边，刀刃; 刀口刀形边缘; 刃形边缘;
Steel Knife-Edge
钢质刀口;
knife-edge relay
刀形继电器; 刃式继电器; 刃式继电器，刀口继电器;