The experimental results show that the changes of defocusing distance(focusing mirror height),scanning speed and laser power will influence the height,width and melt depth of the laser clading layers.
研究表明,离焦量(聚焦镜高度)、扫描速度和激光功率变化将影响激光熔覆层高度和宽度,以及熔化深度。
The impulse coupling coefficients C_m was determined as a function of target defocusing distance Z at 1.
06μm,脉冲能量320 mJ,脉宽10 ns的Nd;YAG激光作用在Al靶上,研究了冲量耦合系数(C_m)和离焦量(Z)之间的关系。
Varying defocusing distance laser-induced breakdown spectroscopy (LIBS) technique is used to analysis the emission mechanism of element from plasma generated by focusing a powerful laser beam on material surface.
本文的工作是通过改变离焦量的大小,采用激光诱导击穿光谱(LIBS)方法,将聚焦的强激光束辐照到靶材表面诱导产生激光等离子体,运用光谱学方法,对所产生的等离子体的发射谱进行特性分析。
the defocus,welding speed and specific energy.
结果表明 ,Ni对离焦量最敏感。
Based on the third-order aberration theory,and considering the change of the focal distance brought by defocus,we get the equation of Newton-Schmidt corrector and all kinds of conditions of eliminating aberration.
从三级像差理论出发,并考虑到离焦量引起的焦距变化,推导反射式牛顿-施密特校正板方程式和各种消像差条件,并求解出反射式牛顿-施密特光学系统。
The precision analysis of dense full-field depth from defocus with cross-sinusoidal grating and sinusoidal grating projecting;
高密度全场主动离焦三维测量的精度分析
Multivariate Function Extreme Value Based Calculations of the Defocused Amount of Expending Telescope
激光扩束器离焦量的多元函数极值解法
The Effect of Uncertainty in Defocus Distance on the Wave-front Reconstruction with the Phase-diversity Algorithm
离焦量误差对相位差法波前重构的影响
Influence of Defocusing Distance on the Laser-Induced Cu Plasma Spectra in Air
空气中离焦量对激光诱导Cu等离子体光谱的影响
Analyzed is the dependence of the defocusing quantity on the hologram size and the spatial frequency bandwidth of the object.
分析了全息图尺寸及其记录的空间频带宽度与离焦量的关系;
Damon and Pythias
焦不离孟,孟不离焦
A Study for Dense Full-field Measurement of Active Depth from Defocus;
高密度全场主动离焦三维测量方法的研究
Effect of Defocused Image on Area Measurement and Error Amendment
离焦成像对面积测量的影响及误差修正
Focus-to-film distance(f.f.d)
焦点-胶片距离(焦距)
equivalent focal length
当量焦距，等效焦距
A unit of energy equal to the work done when a force of1newton acts through a distance of1meter.
焦耳能量单位，相当于1牛顿的力使物体移动1米的距离所做的功
In this way, my absence from home for the longest possible period, without causing suspicion or anxiety, will be accounted for
这样就有理由可以尽量拖延离家的时间，不会叫人起疑，害人心焦了。
DETERMINATION OF MAIN AND TRACE ELEMENTS IN COAL ASH BY ICP-AES
等离子发射光谱法测定焦煤灰分中的主要元素与微量元素
An Experimental Study of Selective and Quantitative Lesion in In-vitro Myocardial Tissue Inducced by High-intensity Focused Ultrasound Irradiation;
高强度聚焦超声选择性定量凝固损伤离体心肌组织的实验研究
An Algorithm for Isolating Real Roots of Rational Polynomial Systems and an Algorithm for Calculating Liapunov Values of Polynomial Li?nard Systems;
有理多项式组的实根分离算法和多项式Liénard 系统的焦点量求解算法
Depth measurement in the direction of optical axis based on defocused micro-manipulation system
基于离焦的微操作机器人系统光轴方向深度测量
The act or result of causing a lens to deviate from accurate focus.
散焦，去焦使透镜偏离准确的焦点的行为或结果
After quantification, the protein samples were separated by isoelectric focusing electrophoresis and then by SDS-PAGE.
定量后，分别进行一维等电聚焦分离和二维聚丙烯酰胺凝胶电泳分离。
Focal length: The distance between the centre of a lens and its principal focus.
焦距:镜头中心与其主焦点的距离。