查询词典 spring beam

The accelerator physics problems of the upgrading program were discussed here, which include the space charge effect on the very low energy beam line, non-parity acceleration at the injector cyclotron SFC, longitudinal match between two cyclotrons, strong magnetic field leakage afluence on the beam transfer at low and very low energy, residual first harmonic magnetic field in the main cyclotron SSC injection region, the low efficiency and beam quality of heavy ions after through stripper etc.

主要问题有：超低能束流传输的空间电荷效应的影响，扇聚焦回旋加速器SFC高频加速电压不对称对束流轨道的影响，用半频聚束的方式补偿两台回旋加速器的纵向不匹配，前束线上聚束器的工作模式的选取，强杂散磁场对超低能和低能束流传输的影响，分离扇回旋加速器SSC注入区过垫补磁场对注入束流轨道的影响，SFC和SSC的单圈引出，重离子通过剥离膜后的束流损失和束流品质的变坏等。

In the end, Based on the conception that the simple beam at ultimate rotates rigidly around the plastic hinge in the midspan when the beam fails because of bending, the formula for calculating the stress in the external tendons and the ultimate anti-bending capacity of the beam in the cases of different deviators have been developed.

最后，基于抗弯承载力极限状态下的简支梁可视为梁体绕跨中等曲率塑性铰发生刚性转动的假设，推导了在各种转向块布置情况下求体外预应力筋的变形和梁的跨中挠度，进而求得梁的极限弯矩的简化公式。

The Fish ID feature gives more information on location than a traditional single beam: Fish in the narrow beam are displayed as solid fish symbols; fish in the wide beam are shown as hollow fish symbols.

双探测器相比单探测器可以提供更多的鱼类信息：窄束探测器探测到的鱼类在显示屏上显示的是实体形状，而宽幅探测器探测到的鱼类在显示屏上显示的是空心的形状。

In this paper, the author first set force the conception, structural style, characteristic and development survey and so on of the beam transfer floor structure, and focus on the analyse of stress characteristic of prestressed concrete transfer beam structure at large, and recommend the design of major project briefly, then carry on the research of the construction technology of large span prestressed concrete transfer beam structure home.

本文首先简要阐述了梁式转换层的概念、结构形式、特点及发展概况等内容，重点对预应力混凝土转换梁结构的受力特点作了较为详尽的分析，并对其重点项目的设计做了简要的介绍，然后对大跨度预应力混凝土转换梁结构的施工技术进行了深入的研究。

This paper introduces the calculation process design of ground anchor end -beam of continuous reinforcement concrete road surface, analyzes the influence on end -beam internal forces caused by plate thickness, beam height, soil inner friction angle and road bed soil cohesion.

介绍了连续配筋混凝土路面端部地锚梁计算流程设计，分析了板厚、地锚梁高度、内摩擦角以及路基土粘聚力等因素对地锚梁受力状况的影响，并得出了结论。

A circle is placed at the launch point to improve the interaction between the electron beam and the fields supported by the slow wave structure, thus to control the beam current density at the launch point, and to minimize the loss of the electron beam energy. The inaner radii of the extractor vanes are slightly larger than those of other SWS vanes, which increases the axial group velocity and enhances the microwave output power and efficiency. Implementation of two RF choke vanes stops the leakage of microwave pulse power toward the diode, and makes the device more compact than the conventional MILO.

该振荡器在阴极电子发射起点加圆环，控制此处电子束的发射密度，来减少电子能量的损耗，改善束－波互作用；逐渐加大慢波结构的后两个叶片的内半径，增大微波群速度，便于谐振腔中的能量输出，提高微波输出效率；采用两个扼流片有效地阻止了微波功率向二极管区泄漏，相应减小了器件的尺寸。

A detailed calculation results verified the moment and deflection of lapped connection beam is similar as that of continuous beam. So the continuous beam analytic model is suitable for analyzing roof purlins. However, how to guarantee the stability of the bearing compressed zone without the tension bar in bottom flange greatly affect the use of continuous purlins in project, theoretical analysis is carried out.

对搭接模型和均匀连续梁模型的计算结果进行对比，证明采用均匀连续梁的分析模型可较为准确地描述连续搭接檩条的内力状况；而对于仅在檩条上翼缘附近设置拉条，竖向力作用下如何保证支座区受压下翼缘的稳定性在很大程度上影响着连续檩条在工程中的推广应用，因此对其进行了理论分析。

The tower plate utilizes stainless steel double bottom plates welded main beam ,by which welding deformation can be reduced,straight linear degree can be guaranteed, main beam rigidity as well as entire beam stability can be strengthened to resist horizontal orientation live load,and tower height can be lowered as well.

塔盘用不锈钢双腹板焊接主梁，能够减小焊接变形、保证主梁的直线度、增强主梁抗水平方向动载荷的刚性和主梁的整体稳定性、降低塔体高度。

The beam widt h of t his equivalent basic mode is measured by including 98 % of t he beam energy , and t his is an effective way to calculate t he beam quality parameter.

对于工业用大功率固体激光器，输出激光功率较大，达数千瓦；为满足加工过程对不同功率的需要，输出功率有较大的范围，从额定功率到额定功率的 10 %；输出激光的模式为多模，光束质量随着输出功率的增加而变化。

In this paper, the through truss composite beam is first equalized to a box beam and the progression solutions to the temperature effect of the composite beam are then obtained with the variation method.

首先将下承式桁梁结合梁等效为箱形梁，再用变分法求出了下承式桁梁结合梁温度效应的级数解，并对京沪高速铁路上的一座简支下承式钢桁结合梁桥进行了计算，其结果可供下承式桁梁结合梁设计参考。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。