查询词典 beam-focusing

The beam extracted from cyclotron is of Gaussian distribution, but in many applications the uniformly distributed beam is needed.

加速器引出束流分布一般都是高斯分布，而在束流应用中需要更多的是均匀分布的束流。

Comparing with the traditional He-Ne laser narrow beam collimating method, it has the advantages of the less influence of air disturb, minor light beam drift and high stability of the datum line.

与传统的He-Ne激光细光束准直法相比，这种方法受大气扰动的影响小，光束漂移小，准直基线的稳定性好。

This paper discusses the problems met in static test as the setting of datum line beam and reference stake,compaction of main beam by jack,loading side test,and quick and slow loading method,in order to ensure scientificity and accuracy of static test data,and to improve the quality of pile foundation detection and the reliability of detection evaluation result.

对基准梁与基准桩的设置、主梁压实千斤顶、边堆载边试验、慢速与快速加荷法等静载试验中遇到的问题进行了探讨，以保证静载试验数据的科学性和准确性，从而提高了桩基检测工作的质量和检测评定结果的可靠性。

The deflection system of an electron beam lithography tool is used to control deflection scanning of electron beam.

电子束曝光机的偏转系统控制电子束偏转扫描。

For cable stayed bridge of single tower cooperative system that are often used in practice,the cable tower and beam s character of this system in deflection and mechanics from the length without cable and the ratios of depth of beam to main span is analyzed.

对于工程中常见的独塔不对称协作体系，从主跨无索区长度及主梁的高跨比着手，分析协作体系斜拉桥索、塔、梁的受力及变形状态，对上述设计参数提出合理的取值范围。

The results show that the effects on the output laser wavefront of the FADW are mainly the beam deflexion and the beam divergence, the other high-level wavefront errors are very low.

结果表明，自由旋涡气动窗口对输出激光波前的影响主要是光束偏转和离焦，特别是气动窗口工作在设计状态时，其余低阶及高阶像差都比较小，能够满足实际需要。

In order to guarantee the construction quality of 500 mm×1 900 mm bonded prestress beam,its construction procedure,installation and demolishment of formwork,corrugated pipe setting,prestressed beam baiting,threading and stretching duct grouting and end envelop and other construction points were illustrated,so as to guarantee both quality and quantity.

为了保证500 mm×1900 mm预应力梁的施工质量，对该预应力梁的施工顺序、模板安装与拆除、波纹管留设、预应力筋下料、穿束与张拉孔道灌浆及端部封裹等方面分别阐述其施工要点，保质保量地完成了该预应力大梁的施工。

Because the intensity of stable deuteron beam is sig-nificantly larger than that of unstable ~(26)Si beam, the statistics will be largelyimproved.

同样也可以利用该方法通过分析已有的~(26)Mg~(27)Mg反应的角分布来间接研究~(26)Si~(27)P反应。

The data were applied to simulate the neutron energy spectrum and angular distribution of Lanzhou University 3×10^12 s^(-1) intense neutron generator with 260 keV deuteron beam using MCNP. The interactions of neutron and the materials of neutron generator and laboratary wall were included in this MCNP simulation. The simulation results on the neutron energy spectrum and angular distribution of Lanzhou University 3×10^12 s^(-1) intense neutron generator with 260 keV deuteron beam were presented.

以分割法计算得到的能谱和角分布数据为基础，建立了D-T中子源Monte-Carlo模拟抽样模型，在考虑中子发生器各元件材料及实验大厅墙壁对快中子的慢化、散射和吸收的条件下，采用MCNP程序对兰州大学3×10^12s^(-1)强流中子发生器260 keV氘束流能量下的中子能谱和角分布进行了模拟，给出了模拟结果。

Since the deflection of external cable does not follow the beam deflection except at the deviator points during the beam is being deformed, the strain in a cable totally differs the strain in the concrete at the cable level.

由于外部电缆挠度不遵守的情况除外偏点在束束偏转正在变形，在一个完全不同的电缆应力在混凝土的电缆水平的压力。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。