Calculation results reveal that the equivalent beam length is more suitable to describe the beam size of vortex beam after propagation.
数值计算进一步说明，等效光斑尺寸更适合用来表征涡旋光束传输后的光斑大小。
The parameters considered include the mean beam length of flue gas, the emissivity of gas, the film beat transfer coefficient and the enthalpy of flue gas.
这些参数包括烟气的平均辐射长度、烟气黑度、对流传热系数、烟气的热焓等。
Pointer Length: the distance the beam will project before stopping.
(指针光束长度)：在停止前光束投射的距离。
A typical dragon boat ranges from 50-100 feet in length, with a beam of about 5.5 feet, accommodating two paddlers seated side by side.
一艘典型的龙舟长度达50到100英尺不等，束长约5.5英尺，可容纳两个桨手并排坐。
The heat flux to slab surface of a walking beam reheating furnace along length of the furnace is computed, and total heat exchange factor is also calculated.
以某轧钢厂的一台步进梁式加热炉为例，计算了钢坯表面热流沿炉长方向的分布，并反算求解总括热吸收率。
The paper gives the calculation formula of the steel box beam rib plate, side line length and coordinate of transition curve sections combined with construction practice.
本文结合施工实践，推导给出了缓和曲线段钢箱梁肋板、边线长度和坐标的计算公式，用于缓和曲线钢箱梁和其它结构梁的放样计算。
Enough clinging strength between the concrete beam and the composite plate is the key to a successful reinforcement design, and it is also a criterion for designing the bonding length of the plate.
碳纤维片材与混凝土基层间的有效粘结是确保碳纤维加固混凝土结构成功的关键，也是确定碳纤维片材粘贴搭接长度的依据。
In addition, the amplitude distribution asymmetry is bigger if the frequency is higher when the length of beam is the same.
同一长度的振动梁，工作频率越高，振幅不均匀度越大。
The simplified calculation formula for effective support length of end beam is determined by the code (GB50003-2001) for design of masonry structure.
《砌体结构设计规范》GB50003 2001关于梁端有效支承长度采用了简化计算公式。
It is put forward that under a definite prestressed force, the distribution discipline of the counterforce along the length of beam is quadratic parabola rather than linear or uniform one.
认为在一定锚固预应力作用下，梁底反力沿梁长呈二次抛物线分布，而直线及均匀分布。
We could obtain arbitrary interaction length by means of an axially movable "kicker" magnetic field that deflected the electron beam.
我们利用偏转磁场可以获得任意的相互作用区长度。
A new type of focusing lens which can focus a laser beam into a line of any length and its possible applications are proposed.
提出了一种能把激光束聚焦成任意长度的新型直线聚焦透镜及其可能的应用。
With the increase of the beam rigidity, the length of the press area and the axes tension force of the beam near the gate-hole increase.
随着梁刚度增加，梁端受压区段长度增加，门洞处梁轴向拉力加大；
The strehl ratio of PCFT beam array with small coherence length and bigger beam order are less affected by turbulence.
相干长度越小、光束阶数越大，部分相干平顶光束序列的斯特列尔比受湍流影响越小。
It is hard to design for beam expander with high power and wide aperture required, because it is shorten length, larger aperture, as well as on axis and off axis aberration must be corrected properly.
高倍率及大孔径扩束器要求筒长短、口径大、轴上和轴外的像差都要很好地校正，所以光学系统的设计是非常困难的。
The influence of atmospheric turbulence on the relative beam width spreading is larger for PCFT beam array with larger beam order and smaller coherence length.
光束阶数越大、相干长度越小，部分相干平顶光束序列的相对束腰宽度扩散较快；
The simulation results indicate that the adaptive beam expander can be used to control the focusing length and spot size.
数值模拟结果表明，自适应扩束系统能够实现对“飞行光束”聚焦特性亦即焦点位置与焦斑大小的控制。
The calculation models of curved beam Bridges with same span length, but different curvature radius, center angles and supporting forms are established by means of finite element software.
利用有限元软件，建立了跨径相同、曲率半径和圆心角以及支撑形式不同的弯梁桥计算模型。
The theoretical results show that a smaller correlation length of screen surface and the narrowing of laser beam in scanning direction can reduce speckle contrast for this system.
通过分析结合模拟结果，认为减小屏表面的相关长度，在扫描方向压窄激光光斑可以减小该系统中的散斑对比度。
With abroad data and rational analysis, the major work is described as follows: (1) Influencing factors of reversed arch in prestressed concrete beam is analyzed at length.
本文通过广泛的资料收集和合理的理论分析与计算，主要进行了以下几项工作：(1)较细致地分析了影响预应力混凝土桥梁起拱度的各项因素。
The finite-length beam on elastic foundation is solved by the wavelet Galerkin finite element method. In comparison with the analytical results, the solution has better accuracy and convergence.
用此方法求解弹性地基上的有限长梁，从结果对比可以看出其解具有良好的精确性和收敛性。
The experiment shows that the higher the pump power is, the smaller the thermal focal length is, and the worse the thermal effect influent the output beam quality.
实验结果表明，抽运功率越高，热焦距越小，热效应对输出光束质量影响越严重。
The paper introduces specific construction process of pretensioning cored slab beam at some length, improves existing problems in construction.
就先张法预应力混凝土空心板梁的施工过程作了详细的介绍，对施工中存在的问题作了相应的改进措施。
One or more of the cross-beam wall portions have a notched opening formed at a selected location along a length of the first or second cross-beam wall portions.
所述横梁壁部分的具有沿着所述第一或第二横梁壁部分的长度在选定位置处形成的一个或多个凹口。
These parameters include the variety of width-length ratio of the wall, bracing rigidity, thickness of the wall and ratio of beam rigidity.
分析了支撑刚度、墙体高宽比、墙厚及梁柱线刚度比等参数的影响。
These parameters include the variety of width-length ratio of the wall, bracing rigidity, thickness of the wall and ratio of beam rigidity.
分析了支撑刚度、墙体高宽比、墙厚及梁柱线刚度比等参数的影响。
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