knife edge

英 [ˈnaɪf edʒ]

美 [ˈnaɪf edʒ]

adj.  形势难料的

机械

英英释义

noun

• the sharp cutting side of the blade of a knife
  Synonym:cutting edge

双语例句

• The concept of a new type wavefront sensor-rotating soft knife edge wavefront sensor has been proved with Fourier optics theory.
  利用傅里叶光学理论，证明了一种新型波面传感器&旋转软刀口波面传感器的概念。
• Beam quality factor M~ 2 is measured by the means of knife edge for different bending of LMA fiber and the slope efficiency is measured separately.
  采用刀口法测量了不同弯曲直径下的激光光束质量因子M~2，并对每种情况下光纤激光器的斜率效率进行了测量。
• 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。
• This time, United face Chelsea in a potential Barclays Premier League title-decider at Old Trafford on Saturday with the championship still on a knife edge and a run-in laden with pitfalls to come.
  这次，曼联周末就将在主场迎战切尔西。这很可能将决定本赛季联赛桂冠的归属，卫冕冠军现在的领先优势并不大。而现在又折损大将。
• The application of measuring a knife edge profile is introduced.
  介绍了测量断面边缘检测系统的应用。
• Besides, in most cases the overlong distance from knife edge to the aspheric surface to be tested will decrease the precision of the knife-edge testing.
  此外，在很多情况下，刀口到待检非球面的距离很长，从而降低了刀口检验精度。
• By using knife edge as object, and CMOS sensor as device for image analyzing, we get edge spread function from the image and use differential operation and FFT to obtain modulation transfer function of the lens, then its image quality is known.
  以刀口作为目标物，以CMOS作为图像分析器件，从图像中获取刀口函数，经微分和FFT运算，得到成像镜头的MTF（调制传递函数），从而得知其成像品质。
• Tip: DO NOT lift the knife edge above the knuckles!
  注意事项：不要把刀抬起高过指关节。
• His future remains on a knife edge
  他前途未卜。
• A Self Contained Smart Depth Recorder A knife edge compensated ink-stylus
  微电脑自容式深度记录器尖刃补偿墨水笔描记录器