knife edge
英 [ˈnaɪf edʒ]
美 [ˈnaɪf edʒ]
adj. 形势难料的
英英释义
noun
- the sharp cutting side of the blade of a knife
双语例句
- 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 - 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。 - 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。 - 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。 - Based on the optoelectronic inspecting technology, the chinks between knife edge and the generatrices of measured part were measured by the laser scanned inspecting system and using the rotating and axial feed servo systems, and the non contact automatic measurement of straightness error was realized.
基于光电检测技术，利用回转和轴向进给伺服系统，通过激光扫描检测系统测量刀口尺与被测零件素线之间的间隙，实现了对直线度误差的非接触自动测量。 - 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。 - 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 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。 - 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。 - 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。