查询词典 beam-focusing

By analysis and comparison on the design of two beam-arch combination system bridges, this paper reflects the decisive influence of stiffness ratios of arch to beam in this kind of bridge design directly, and analyzes different design methods of these two bridge on arch rib tie bolt, and other key points for these two kinds of bindges.

本文通过对两座拱梁组合体系桥梁设计的比较和分析，直观地反映了此类桥梁设计中拱梁刚度比的决定性影响；同时分析了两桥在拱肋、系杆等细节的不同设计方法。

Impact factors of a simply supported beam, a three-span continuous beam and a cable-stayed bridge are evaluated and compared with various models of vehicle and various speeds of train.

选取简支梁桥、连续梁桥及斜拉桥等3个实例，在各种车辆模型及各种车辆速度作用下，对桥梁的冲击系数进行了全面的计算和比较。

A new way to change the parameters of non-diffracting beam using a popular sphere lens telescope system is proposed based on the relationship of lens transform between non-diffracting beam and ring light source.

本文提出一种用普通球面透镜望远系统来改变无衍射光束参数的新方法。

In order to ensure PC beam track's precision, it has unique formwork. The formwork is also introduced in this paper. According to the study on all kinds of force and linetype of PC beam track, the theoretical formula of inverted camber and striking angle are established.

由于其自身的独特特点，PC轨道梁最为特殊的就是其制作尺寸精度要求极高，为了保证其精度，它有比较独特的模板系统，本文也对其模板系统做了简要介绍。

This design main be how average type beam drill electricity charge circuit be in progress design, main content include host circuit design, control circuit design, instruction circuit design and under the control of component choice, not bad come true Z3050 type beam drill starting, stop, be rotating, roll back and a few corresponding protection function.

本设计主要是多普通型摇臂钻床的电控线路进行设计，主要内容包括主电路的设计、控制电路的设计、指示电路的设计和控制元器件的选择，可以实现Z3050型摇臂钻床的启动、停止、正转、反转以及一些相应的保护功能。

Through the analysis of two examples, the impact factors of both simply supported beam and continuous beam with various models of vehicle and various speed of truck are evaluated and compared.

选取简支梁桥和连续梁桥2个实例，在各种车辆模型及各种车辆速度作用下，对桥梁的冲击系数进行了全面的计算和比较。

By considering the finite spread in beam longitudinal momentum and the effect of finite space-charge field of the electron beam,the dispersion relation of IRL instability is derived ,and the growth rate of IRL wave and the linear damping rate of the space-charge wave are also got.

利用动力学理论对一种新型自由电子激光──离子波纹激光进行了研究，考虑电子束的纵向动量离散和空间电荷场效应，导出了IRL不稳定性色散关系，求得了IRL辐射波的增长率及电子束空间电荷波的线性阻尼率，并对其进行了讨论，得到了一些结论。

"Electric door locks that snap the door lock down at the touch of a button, rear window defogger, station-wagon tailgate window washer, windshield washers, electric eye to shift the headlights from high beam to low beam when approaching another car, and so on."

按下电动门锁的按钮，即可锁牢车门。会车或发生类似情况时，电眼可将前车灯由强光调成弱光。

"Electric door locks that snap the door lock down at the touch of a button, rear window defogger, station-wagon tailgate window washer , windshield washer s, electric eye to shift the headlights from high beam to low beam when approaching another car, and so on."

按下电动门锁的按钮，即可锁牢车门。会车或发生类似情况时，电眼可将前车灯由强光调成弱光。

Combined with practical work,from technological process,erection of consolidation platform and incremental launching platform ,fabrication and installation of slide rail,field assembly of steel box beam and other aspects incremental launching construction technology of steel box beam is introduced in order to provide references for similar works.

结合工程概况，从顶推施工工艺流程、钢箱梁拼装平台及顶推平台搭设、滑道制作安装、钢箱梁现场拼装、钢梁顶推及落梁等方面介绍了主桥钢箱梁的顶推施工技术，以供类似工程参考借鉴。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷