This paper studies mainly the expression of electron-beam scanning field distortions and describes the method of optimal corrections.
本文探讨了扫描场畸变表达式并叙述了获得最佳校正的途径。
The formation of the triangle scanning field signal used in optical pumped magnetic resonance is analyzed, and its function in the experiment is also explained concretely.
通过对三角波扫场信号产生的分析，对其在光泵磁共振实验中的作用作了具体的解释。
An imaging system of pattern generator was designed to correct linear distortion of scanning field of ane-beam lithography system, which was composed of both hardware and software.
为实现电子束曝光机扫描场的线性畸变校正，设计了图形发生器的成像系统，该系统包括硬件和软件两部分。
A complete design example of elliptical window optical system is demonstrated and the results show that the MTF of optical system approaches the diffraction limit across the entire scanning field.
给出了完整的椭球形窗口光学系统的设计，设计结果表明，系统的调制传递函数在整个扫描视场范围内接近衍射极限。
This kind of scanner has been used in the system of scanning near field optical microscope.
这种扫描器被用于扫描近场光学显微镜探测系统中。
Near Field Optical Microscope (NFOM) is a kind of scanning probe microscopy with high resolution.
近场光显微镜(NFOM)是一种高分辩率的扫描探针显微镜。
Field emission scanning electron microscope (FESEM) has been used to investigate the fine structure of Fe-based metal film interface and its cross-section.
采用场发射扫描电子显微镜(FESEM)，研究了铁基金属包膜界面及其断面的精细结构。
The use of Scanning Near field Acoustic Microscope (SNAM) in measuring the topography of precise surface is presented.
描述了一种用于检测超精表面形貌的扫描近场声显微镜（SNAM）。
The influence of different EB scanning tracks on the brazing temperature field is discussed by the finite element analysis method.
本文通过有限元分析的方法讨论了不同电子束扫描轨迹对钎焊温度场的影响；
The research work above provides theory basic for exactly modeling and quality controlling of laser processing temperature field having the character of scanning and superposing process.
上述研究工作为具有扫描叠加过程特点的激光加工温度场精确建模和质量控制提供了理论基础。
Meanwhile, the effects of processing parameters of EB brazing on the temperature field at optimal scanning track are discussed.
同时，讨论了最佳扫描轨迹下电子束钎焊工艺参数对温度场的影响。
To compare the relationship between the artifact of different fixed prosthesis and field strength, scanning sequence.
同时比较不同修复体产生伪影与磁场强度及扫描序列之间的关系。
Results: Making use of the low field gradient echo (GE) -t2w's scanning can improve identifying meniscus injury.
结果应用低场梯度回波序列(GE)T2 W扫描可提高半月板损伤的诊断。
A submillimeter wave (SMMW) beam field distribution automatic measurement system using a scanning mirror with microcomputer control has been built and studied.
研究一种采用反射镜扫描方法由微机控制的亚毫米波场分布自动测量系统。
Formally speaking, if the parameters such as scanning speed, physical properties are given, the calculation result of heat effect of laser on temperature field can be wholly confirmed.
从形式上来看，对于给定扫描速度及材料热物性参数后，激光热作用温度场的计算结果已经是完全确定的事。
In the field blanking period of transmission line field synchronizing signal, so that the charge, the synchronous scanning, to accurately reproduce the original image.
在行场消隐期间传送行场同步信号，使收、发的扫描同步，以准确地重现原始图像。
The phase composition and microstructure of mullite powders were investigated by X-ray diffraction and field emission scanning election microscopy techniques.
利用X射线衍射仪和场致发射扫描电子显微镜等手段对合成粉体的相组成、结构和形貌进行了研究。
A plasma wake flow field is studied by analyzing the saturated ionic current of multiple scanning probes with the method of chaos dynamics.
用混沌动力学方法对多道扫描静电探针的离子饱和电流信号进行分析，研究了等离子体尾迹流场。
Based on the theories of opt-mechanics scanning system and optical transmitting system, the far field scanning system is designed.
根据光机扫描系统理论和发射光学系统理论设计，完成了大口径远场扫描发射光学系统。
To begin with, the influence that plane scanning error has on the far field is analyzed and the upper boundary of the error is formulated.
着重研究了影响近场测量精度的两种误差：扫描探头定位误差和有限扫描面截断误差。
This makes it possible that laser scanning projection display can expand its applications to some special field.
这些优点为激光扫描投影显示在一些特殊领域的扩展应用提供了可能。
Then the double scanning recognition sketch based on the one dimensional wave in time field is determined for the concrete system.
针对具体的弹载系统，确立基于时域一维波形的二次扫描识别方案。
The laser stripe scanning technique can be used in underwater imaging system to increase field of view and reduce backscatter.
条纹激光扫描成像方法能够同时满足水下激光成像系统对增大视场和减小后向散射光影响的要求。
Influence of CO2 partial pressure on corrosion scale of P110 steel in stimulated oil field environments was investigated by using scanning electron microscopy(SEM) and x-ray diffraction(XRD).
利用高温高压釜设备辅以失重法、采用扫描电子显微镜（SEM）和X射线衍射（XRD）技术，研究了在动静两种状态下CO2分压对P110钢腐蚀产物膜的影响。
To evaluate the diagnosis and differential diagnosis value of low-field MR plain scanning in hepatocellular carcinoma (HCC) and hemangioma.
目的探讨低场MR平扫在肝细胞癌(HCC)的诊断与鉴别诊断中的价值。
This paper presents some key techniques for measuring ultra low sidelobe antennas by near field scanning, and discusses various error sources that directly affect the measurement accuracy.
文中就超低副瓣天线近场测试所涉及的若干关键技术和直接影响测试计算精度的各类误差源进行了探讨。
Background &Objectives:It was difficult to get a good tissued ose distribution using fixed field irradiation technique in large field. But the translating scanning beam irradiation can make it.
背景与目的：用固定野技术行特大野照射时，很难得到理想的组织剂量分布，而平移扫描式照射却能做到。
Background &Objectives:It was difficult to get a good tissued ose distribution using fixed field irradiation technique in large field. But the translating scanning beam irradiation can make it.
背景与目的：用固定野技术行特大野照射时，很难得到理想的组织剂量分布，而平移扫描式照射却能做到。
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