There exists on optimal value of magnetic focusing field and beam voltage, which can minimize the ion noise amplitude.
束电流与束电压确定，存在最佳的磁场使离子噪声幅度最小。
In addition, auto-searching in focusing field is also developed, and successive approximation approach was adopted as a method of auto-searching in this focusing system.
此外文章还讨论了在可调焦范围内进行焦点自动搜索的方法，选用了逐次逼近法来进行本系统自动调焦的控制。
Proper focusing is critical at night because small apertures are often impractical — therefore one cannot afford to waste mispositioning the depth of field (see hyperfocal distance).
在夜晚，合适的聚焦非常关键，因为小光圈常常不合实际。因此，你不能错误地定位景深 （超焦距）。
In this article, I shall introduce the field and the significant developments in knowledge management for learning and instruction, focusing on metadata for learning objects.
在本文中，我将介绍这个领域以及学习与教育知识管理的重大进展，重点放在学习对象的元数据上。
We might even go further and argue that history has become a sub-field of biology, focusing on the behaviour of one animal, Homo sapiens.
我们可能需要更加深入地把历史学当作生物学的分支学科来研究，专注研究一种动物的行为表现，那便是智人。
But as you may know, I am a big advocate of specializing, and I realized that I had a better chance of being outstanding in my field by focusing on writing instead of visual art.
但是，正如你所知，我是一个专攻的支持者，并且我意识到了，我在写作方面比在视觉艺术方面更有可能取得杰出的成绩。
The study on the beam smoothing and the focusing properties of the broadband harmonic field can provide valuable reference to the experiment.
对宽带倍频光的光束匀滑及聚焦特性的研究，可为实现靶面均匀辐照提供参考。
Digital projection display has become the mainstream in modern display field. Accurate focusing of the array pixel devices in these systems determines the quality of the displaying effect.
数字投影显示已成为现代数字显示领域的主流，阵列像素器件投影成像的的精确会聚，直接决定了显示的效果。
Focusing on foreign language collaborative learning research becomes a trend in the field of educational technology in foreign language teaching and learning.
在教育技术环境下外语合作学习的研究已成为现代教育技术辅助外语教与学领域中的一个热点问题。
The significance of using a harmonic magnetic field in SFC (Sector Focusing Cyclotron) and the requirements for the harmonic power supplies are described roughly.
简要描述了扇聚焦回旋加速器（SFC）中使用谐波场的意义和对谐波电源的要求。
It is shown in music field that Chinese music, focusing on the inspiration and insight, is mainly for lyrical expression of self psychological world, and reflects the deep rhythm of self emotion.
表现在音乐领域，中国音乐重灵感、重内视，以自我心理单线条的抒情表意为主，诠释自己情绪的深邃律动。
On the assumption that there was a small solid sphere in the focusing area, the scattering field of concave sphere ultrasonic transducer was analyzed.
以凹球面超声换能器为研究对象，假设聚焦区存在一刚性球形微粒，对此时的散射场进行分析。
For the focusing current distribution over the antenna aperture, the authors have got the field distribution diagrams of the focus and around it.
对于天线口面上的聚焦电流分布，求得了聚焦点及其周围附近的场分布。
The existence of a space charge field and its strong focusing properties are tested experimentally.
实验验证了空间电荷场的存在及其强聚焦特性。
Beijing this year will be to strengthen the supervision of the circulation area of food safety, focusing on a comprehensive field of product quality to enhance the flow of control.
北京今年将以加强流通领域食品安全监管为重点，全面增强流通领域商品质量控制能力。
The competition of modern enterprise is gradually focusing on logistics field which is called "the third source of profit".
现代企业竞争的焦点逐渐转向有“第三利润源泉”之称的物流领域。
There are many methods to measure the pattern of phased array antenna, such as the technique of plane scanning in near field, focusing method in Fresnel zone, general method in far field, etc.
阐述了用聚焦法在菲涅尔区测试相控阵天线的理论依据及实现方法，用实验结果对近远场方向图进行了比较。
Nodular defects, which are in critical state of damage, are cross-sectioned by focusing on the ion beam and by imaging using a field emission scanning electron microscope.
采用聚焦离子束和场发射扫描电镜对处于临界破坏状态的节瘤缺陷做剖面分析和观察。
The aperture focusing technology is an effective means of the improving near field lateral resolution in ultrasonic diagnostic B-sanner.
孔径聚焦技术是B型超声诊断仪中一种提高近场区域横向分辨力的有效手段。
One cannot as one will spend more time reweaving one's field than focusing upon the next phase of ascension in the addictive use of such forms of entertainment or places.
你不能。因为，在这样将形体沉溺于娱乐或地方的方式中，你将花更多的时间来重织你的能量场，而不是聚焦在提升的下一阶段。
We discussed the stability of both radial movement and axis movement of charged particle in infirm focusing magnetic field and obtained the term of stability.
我们探讨了弱聚焦磁场中带电粒子轴向和径向运动的稳定性问题，得到稳定性条件。
The phase-adjusted focusing laser accelerator requires a laser field with special polarized distribution------a radial polarization.
调相聚焦激光加速原理要求激光场具有一种特殊的偏振分布——径向偏振分布。
According to the special measurement requirements of the magnetic field distribution of radar electromagnetic focusing system, a automatic measurement system based on vision localization is developed.
针对雷达电磁聚焦系统磁场分布的特殊检测要求，开发了一套基于视觉定位的磁场分布自动检测系统。
The expression for instantaneous pressure near the focusing area was obtained by analyzing the characteristic of focusing acoustic field.
通过分析聚焦声场的特性，得到了聚焦区附近的瞬时声压表达式。
The result shows that under the constant current exciting mode, the exciting magnetic field is the strongest and has a focusing effect, which improves the eddy detection sensitivity considerably.
结果表明，在恒流激励方式下的激励磁场最强，且具有聚焦效果，因而可有效地提高涡流探伤的灵敏度。
Reform idea: reestablish the importance of track and field teaching, focusing on expansion of course content, improve teaching methods and improve the test system.
教改思路：重新确立田径教学的重要性，注重扩展教学内容，完善教学手段与方法，改进考查制度等。
If you have difficulty feeling your emotions, start by focusing attention on the inner energy field of your body. Feel the body from within.
如果你很难感受到自己的情绪，可以先试着把注意力放在身体的内在能量场上，从内在感受你的身体。
The calculating formulas in the paper are available and convenient for computer aided design of focusing magnetic field of camera tube.
文中计算公式对于计算机辅助设计摄像管聚焦磁场是适用和方便的。
Objective: Study the influence of parameters such as attenuation coefficient, velocity of sound, and temperature of medium on focusing sound field.
前言：目的：研究声衰减系数、声速、温度等媒质参数对声聚焦的影响。
Objective: Study the influence of parameters such as attenuation coefficient, velocity of sound, and temperature of medium on focusing sound field.
前言：目的：研究声衰减系数、声速、温度等媒质参数对声聚焦的影响。
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