查询词典 beam

We made the light absorption coefficient measurement system with Nuclepore filter which were used to collected aerosol particles. The system has one laser beam which is split into two laser beam, one being information light which transfer through glass pipe, the other being reference light which transfer directly through atmosphere. so the measurement system could well eliminate the effect of all kinds of measurement errors which were caused by optical ullage and circuit noises and power fluction.

本测量系统利用核孔过滤膜采集气溶胶粒子，测量系统的光路由同一光束分为两路光组成，一路为信号光，通过光管传输，另一路为参考光，通过信号光和参考光相比很好地消除了测量系统中由于光管损耗、电路放大倍数的差异及光功率起伏等因素所引入的误差对吸收系数测量的影响。

For two parallel, interconnected beams, the beam with the greater load shall be considered as unbraced and the other beam as braced at the points of interconnection.

对于同方向互联的两个横梁，负荷较大的那个横梁被视为不加支撑的，另外一个横梁在互联点处为不加支撑的。

This paper gives analyses of form-finding for beam string structures and provides an alternative method of lowering temperature of string to find beam string structures' undeformed configuration.

对预应力索－梁结构体系的形状确定问题进行了分析。

The unprinted credit card inspection system takes the advantage of the collimation characteristic of laser. We use a beam expander to expand a laser beam broad enough to cover the whole credit card without losing its collimation characteristic.

其信用卡的刮痕检测系统，利用雷射平行光的特性与扩束器的原理，将雷射光束放大到足以涵盖整张待测的信用卡，然后将影像反射在一屏幕上以减少雷射光强度，进而得以清晰撷取刮痕影像。

Firstly, the optical structure of the measurement region of the dual beam laser Doppler velocimeter is derived exactly based upon the wave function of Gaussian beam.

首先从高斯光束的波动方程出发，推导出双光束激光多普勒测速仪相干区域的光学结构及随被测体一起运动的微粒所散射的光波函数。

The distribution of electron beam velocity ratio and velocity spread on axis was discussed, and the effects of the anode voltage on electron beam performance was studied.

给出了电子束速度比、速度零散沿轴线的分布，进而讨论了阳极电压对电子束性能的影响，结果表明选择适当的阳极电压和阴极磁场对得到好的电子束参量作用明显。

Such as: how to better play to high-performance concrete properties; how to avoid temperature changes, shrinkage and creep of concrete, foundation, uneven settlement and so on; how to ensure that close up before the end of the vertical deflection of the cantilever 2 and the main beam axis deviation of the lateral shift does not exceed the permissible range; how to ensure that folded after the bridge linear positive; how to avoid the construction of the main beam and so there have been a big stress.

如何更好地发挥高性能混凝土性能；如何避免温度变化、混凝土收缩徐变、地基不均匀沉降等的影响；如何保证合拢前两悬臂端竖向挠度的偏差和主梁轴线的横向偏移不超过容许范围；如何保证合拢后的桥面线形良好；如何避免施工中主梁截面出现过大的应力等。

Five full-scale specimens were tested in this study. One is unreinforced beam-to-column connection, and the other four specimens are reinforced with either shear tab or vertical stiffener at beam-to-column connection.

五组试体包含一组未补强之梁柱接头试体，与四组以剪力板或垂直加劲板补强梁柱接头处之试体。

The plastic deformation capacity of the specimens having web openings in plastic zone of the steel beam depends on the reinforcement at beam-to-column connection. The unreinforced specimen could not develop enough ductility, while the specimens reinforced with shear tab or vertical stiffener can achieve satisfactory ductile behavior.

试体於钢梁塑性区腹板开孔，其塑性变形能力则有赖梁柱接头之补强，未补强之试体无法发展出足够之韧性，惟以剪力板或垂直加劲板补强之试体则可发展出令人满意的韧性行为。

In this thesis, overlying strata structure combined"voussoir beam"with"half arch"have been put forward for first time, and mechanism and control features of different forms of"half arch"structure and"S—R"stability for the voussoir beam are analysed.

本文在现场实测研究的基础上，采用相似模拟实验、有限元数值模拟和理论分析方法对综放采场上覆岩层的变形和破坏发展过程进行了系统深入的研究。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。