knife edge

His future remains on a knife edge

他前途未卜。

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。

Design of Experiment for Measuring Gaussian Beam Spot Size Using Knife Edge

刀口法测量高斯光束腰斑大小实验设计

Experimental results show that soft knife edge sensor have good real applied perspective .

实验结果表明，软刀口型波面传感器具有良好的实际应用前景。

Study of rotating soft knife edge wavefront sensor used in adaptive optics

一种适于自适应光学的旋转软刀口波面传感器的研究

The Pseudocolor Encoding of Phase Objects by Foucault Knife Edge Method

用傅科刀口实现位相物体的假彩色编码

Suction outlet controlled by servo motor precision , following the knife edge automatic adjustment .

吸风口由伺服电机精准控制，跟随边自动调整。

The Development on Hydraulic Copying Knife Edge Grinder

液压仿形刃口磨床之研制

In this paper , the developing process , on hydraulic copying knife edge grinder was expounded .

本文阐述了液压仿形刃口磨床研制的全过程，针对原有设备存在的缺陷，提出设计改装方案，进而付诸实施、取得结果。

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

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。

Coating Tungsten on the Glass Knife Edge for Improvement of Cutting Function of Microtome Glass Knives

在玻璃刀口上镀钨&改进超薄切片和玻璃刀的切割性能

If you don 't do this , the plane will fall off into a knife edge spin .

假如你做得不好的话，飞机会进入刀刃旋转。

This paper study the process of getting the point spread function using knife edge method , and the influence factors on the restoration effect to image analysis .

本文深入研究了利用刃边法求取点扩散函数的过程，对影响图像复原效果的因素进行了分析，并提出了自己的评价体系用于遥感图像的复原效果评价。

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。

This paper introduces a new testing method of the surface shape of large optical mirror to replace Ronehi with Foueault knife edge .

本文介绍了用刀口仪代替朗奇光栅用于大型光学镜面面形检验的新方法。

Universally analyzed and discussed in this paper is the visualization of inhomogeneous phase distribution of phase objects with spatial zero frequency filtering and knife edge filtering method .

对空间滤波法的零频滤波与刀口滤波显示位相型物体的非均匀位相分布进行较为普遍且详尽的分析讨论，并给出一些实验结果。

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。

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。

The outcome is on a knife edge , with Pasok controlling only 152 seats in the 300-member parliament .

由于在300个议会席位中泛希腊社会主义运动党仅控制152席，结果看上去凶多吉少。

This political and bureaucratic game of musical chairs has the entire world on a knife edge , continued uncertainty and lack of confident decision making worsening sentiment .

整个世界饱受这种政治官僚游戏之苦，处于风险边缘，加之持续的不确定性和信心的缺乏，投资者情绪恶化加剧。

To satisfy the requirement of ICF experiment , by using own-designed knife edge apparatus and improved temporary-space transform pulse shaping technique , the pulse shaping on Shenguang - ⅱ facility is realized .

为了满足惯性约束聚变实验对前端时间脉冲整形技术的要求，自行设计了刀口器装置。

Two series of fatigue crack growth rate ( FCGR ) tests using three point bend specimen with different integral knife edge designs are performed . Effect of elastic modulus on the measurement of fatigue crack length using compliance technique is analyzed .

用不同整体刀口设计的三点弯曲SE（B）试样做了两组疲劳裂纹扩展速率（FCGR）试验，分析了弹性模量在柔度法测量疲劳裂纹长度中的影响。

In this paper , the parameters of the cylinder-type forage cutterhead with straight knife edge is analysed , the mathematical formulas concerned have been derived . The cutterhead ZC-1.0 is discussed as an example .

本文对直刀刃滚刀式饲草切碎器的参数进行了分析，推导出了有关数学式，以ZC-1.0型切碎器为例作出了评论；

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。

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。

This text has mainly proposed some discussion opinions on this processing method , explained its processing principle , set up mathematics model , proposed optimizing the design prospect of the excellent horn of knife edge to the improvement of the machining accuracy of the whorl finally .

本文主要是对该加工方法提出了一些探讨性见解，并阐述了其加工原理、建立了数学模型，最后对螺纹加工精度的提高提出了优化刀刃优角的设计展望。

On the basis of testing results , main cutting curves of wheat straw were given , under different cutting speeds of rotatory blade with different straw lengths , moisture centents cutting positions , different thicks knife edge , with and without shear bar .

得出粉碎刀片在不同切割速度下，对短秆、长秆、秸秆不同切割部位、秸秆不同含水率、不同刀刃厚度、有定刀和无定刀等情况下的切断率曲线。

In the paper , the proportion of the Gaussian beam spot 's energy in the whole beam energy is investigated . The result shows that the proportion is 95.4 % , not 86.5 % when the spot size of Gaussian beam is measured by the knife edge method .

文中对刀口法测量高斯光束光斑直径时，通常多用能量比值86.5%所对应的位置作为光斑直径，但在一维测量情况下不能用这一数值，通过理论计算，导出了新的数值为95.4%。