磁线圈将电子束聚焦成细小的点。
根据曲轴宽电子束聚焦理论，研究了一种用曲轴轨迹确定轴外点扩散分布的方法。
Based on the theory of wide electron beam focusing with curved axis, a method for determining the off-axis point spread distribution is studied using the trajectories with curved axis.
整体平行束X光透镜能把点X光源发出的发散X光束聚焦后转变成准平行X光束。
Monolithic capillary X-ray lens can collect divergent white X-ray beam emitted from a point X-ray source into a quasi parallel beam.
在没 有这种补充的情况下，离子束会“爆炸”，导致强度的损失和束聚焦的破坏。
Without this supplement, ion beams can 'blow-up' causing loss of intensity and disruption of beam focusing.
同时通过近似计算给出了由于加速间隙电压波动引起束聚焦焦斑模糊范围增大的上限值。
The upper limit values of blurred area coverage of focal spot caused by the fluctuation of accelerating gap voltage are also calculated using a approximate method.
当一束聚焦的、调制的激励激光照射固体材料时，表面上除了产生周期性的温度分布，还产生局部的周期性形变。
When a focused, modulated exciting laser beam incidents onto a solid surface, besides generation of periodical temperature distribution, a periodical local surface deformation also occurs.
因此相控阵列能够更加灵活、准确而快速地实现多样化的焦点模式和焦点扫描控制，是非常理想的声束聚焦手段。
So phased array is an ideal applicator that can congregate ultrasound beam and shift the focus more flexibly, rapidly and accurately.
一个来自罗马尼亚和日本的团队现在已经证明了一种系统，这种系统可以在可变深度上将两三束激光聚焦到发动机汽缸里。
A team from Romania and Japan has now demonstrated a system that can focus two or three laser beams into an engine's cylinders at variable depths.
在高强度下，这种聚焦会使氧原子的粒子束反转，确保了激发的原子多于未被激发的原子。
Being very high intensity, this focus induces a population inversion in the oxygen atoms, ensuring that there are more excited than non-excited atoms.
美国的一个物理学家团队通过将一束紫外激光聚焦于一小块氧分子中，发明了一种聚焦于半空中一点的红外激光束。
A team of physicists in the us has created an infrared laser beam at a point in mid air, by focusing a UV laser onto a tiny volume of oxygen molecules.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
The microscope works by scanning a focused beam of electrons across an object.
研究人员用聚焦的铯离子束将水分子自包裹体中打出并用质谱仪测量其数量。
The researchers used a focused beam of caesium ions to dislodge molecules of water from the inclusions and measured the amount with a mass spectrometer.
全息图是用精细聚焦的离子束在一片30n m厚的薄硅膜上切割出20nm长的极小的裂纹的图案组合而成的。
The holograms were fabricated using a very finely focused ion beam to cut a pattern of extremely small slits just 20 nm across through a thin silicon membrane 30 nm thick.
我能以放大镜聚焦一束太阳光那样的强度来聚精会神。
I can concentrate with the intensity of a beam of sunshine focused through a magnifying glass [n].
以明确的物理意义详细分析和讨论聚焦、扩束准直、扫描显示等光学系统的设计。
Design of optical system for the focusing, the collimating and the scanning is analysed and is discussed with precise physical meaning.
通过将一束圆形光圈聚焦在角膜上，测量反射过来的光线，就能得出角膜表面曲率的确切数据。
By focusing a circle of light on the cornea and measuring its reflection, it is possible to determine the exact curvature of the cornea's surface.
扫描电子显微镜是通过扫描聚焦在物体上的电子束来工作的。
Thee microscope works by scanning a focused beam of electrons across an object.
与传统的超声波探头相比，超声相控阵探头可以实现电子控制下的声束平移、偏转与动态聚焦。
Compared with traditional ultrasonic probe, ultrasonic phased array probe can realize transition, deflection and dynamic focusing of acoustic beam under electronic control.
介绍将原子束激光准直技术和驻波聚焦沉积技术用于制作纳米级图形的基本原理和实验系统设计。
The basic principle and experimental system design for applying laser cooling and focused atomic beams technique to fabrication nano-patterns are introduced.
本文研究了对宽束和细束阴极透镜普遍适用的电磁复合聚焦球面阴极透镜的象差理论。
In the present study, an aberration theory for both wide and narrow electron beams in a combined electromagnetic focusing spherical cathode lens system is discussed.
这些结果可用于电子束器件、电子光学仪器和高能加速器中的聚焦或偏转或聚焦兼偏转元件的设计。
These results of this paper may be of use in designing focusing or deflection systems of electron ray devices, electron-optical instruments and high energy accelerators.
本文研究了宽束大物面电磁聚焦系统弯曲轴电子光学象差理论。
Electron optical aberration theory for angularly wide and transversely large electron beams in electromagnetic focusing systems with curvilinear axes has been further developed.
根据目前的实验研究报道，这种周期结构金属薄膜通常利用聚焦离子束刻蚀工艺来获得，器件的光学响应在可见光波段和近红外波段。
In most of the experiments reported to date, the perforated metal films were fabricated by the focused-ion-beam method, and their transmission enhancement was in the visible and near-infrared regions.
本文主要对椭圆带状电子束的传输稳定性和聚焦方法进行分析。
In this paper, we discussed the transmitting and focusing methods of the elliptical sheet beams.
从束流参数的要求出发，提出了采用阴极聚束鼻锥结构和提高阳极引出电压，以确保束流发射和改善聚焦；
To have enough emitting current and improve focusing, advance a opinion, which is using focusing node and heightening the extracting voltage of anode.
AUTOCLEAN不仅是一种稳健的ISAR自聚焦方法，而且还可以推广应用到聚束sar、曲线sar和机载双天线干涉SAR中的自聚焦处理。
AUTOCLEAN is not only a robust ISAR autofocus tool. but also can be used for the autofocus of spotlight SAR, curvilinear SAR, and interferometric SAR with two antennas.
分别讨论了聚焦极电位、聚焦极孔径以及栅极电位对发射电子束的影响。
Influence of focus electrode bias, focus hole size and grid electrode bias on the emission electron beams was discussed.
用数值模拟方法研究了聚焦离子束系统中微波离子枪的束光学性能。
The ion beam optics of a microwave ion gun for a focused ion beam (FIB) system is investigated numerically in this article.
建立了一台简单实用的单级透镜聚焦离子束(FIB)系统。
A simple and practical single-lens focused ion beam (FIB) System has been built.
建立了一台简单实用的单级透镜聚焦离子束(FIB)系统。
A simple and practical single-lens focused ion beam (FIB) System has been built.
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