查询词典 beam-focusing

Recently, diffractive optical elements have been applied to various aspects, such as the pick-up head of DVD, beam shaping and beam dividing, etc.

绕射光学元件，近来应用日渐广泛，可应用於DVD读写头，及光束整型、光束分离等。

This paper introduces a kind of new anticollision beam,hold cage type absorption power anticollision beam .

介绍了一种新型的防撞梁—托罐式吸能防撞梁，它不仅能把过卷的大部分能量吸收掉，使撞击的损失减小，而且还能把容器托住。

Result proof, this method can hold taller beam gain in direction of many expectation signal, in interference at the same time signal direction forms very deep beam to cave.

结果证实，该方法能够在多个期望信号方向保持较高波束增益，同时在干扰信号方向形成很深的波束凹陷。

Slit mechanism can limit the beam angle, hold excrescent light and select wavelength on Beam Line. The opening width of the exit slit determines bandwidth of wavelength to be measured, and has a direct influence on resolution and photon flux of optical system.

狭缝装置在光束线上起着限定光束张角，阻挡杂散光，波长选择等作用，狭缝的宽度决定了待测辐射的波长带宽，直接影响着光学系统的分辨率和光通量。

Experimental results of new type joints between the column and the steel beam of concrete-filled rectangular steel tubular under reversed cyclic loads are presented. The earthquake resistant capacity of the joint is influenced by infilled concrete, stiffener length and relative dimensions of column and beam.

介绍了新型方钢管混凝土柱与钢梁节点在低周反复荷载作用下的试验结果，分析了内填混凝土、加劲肋长度和梁柱相对尺寸等对节点抗震性能的影响。

The concrete composite box net joint floor is one kind of new-style floor. It is composed of the small prefabricated component with the cast-in-place concrete rib beam. The box and rib beam form a whole structure that has continuous box section and undertake the load together.

混凝土叠合箱网梁楼盖是一种新型的楼盖形式，是由小型预制构件与现浇混凝土肋梁结合成具有连续箱型截面的整体结构，箱体与肋梁共同受力。

Using the software of ansys, this thesis compares and analyzes the seismic behavior of the joint of cold-formed rectangular tube-steel column and H-shaped beam and the joint of welding box column and H-shaped beam, in order to research the influence for the cold forming process of the cold-formed rectangular tube-steel column.

利用大型通用有限元分析软件，对冷弯矩形钢管柱与H型钢梁连接节点与焊接箱形钢管柱与H型钢梁连接节点的抗震性能进行对比分析，探讨出冷弯矩形钢管的特性对节点抗震性能的影响。

It was pointed out that the calculation formula for stress of laminated beam without pin joint in interlayer under bending experiment from relevant literature is wrong, and the calculation formulas for bending stress of laminated beam with or without pin joint in interlayer were rederived.

指出了有关文献推导出的上下梁层间无销钉连接叠层梁弯曲应力计算公式是错误的，重新推导出了上下梁层间无销钉连接与有销钉连接的叠层梁弯曲应力计算公式，对学生正确理解和认识叠层梁弯曲实验有理论指导意义。

While this exercise can be done on a thick length of chain, a tightrope, or even a two-by-four suspended on a pair of sawhorses, the ideal tool is a standard gymnastic balance beam. Stand on the beam on the ball of one foot, lifting the other leg and using it and your arms to find a balance point.

用一只脚的圆形部位站在杆上，举起另一只脚然后用手臂来保持平衡，当你已经可以自由运用，尝试站著时，另一只脚伸到后面抬得愈高愈好，同时身体往前倾，只用你伸出去的那支手当平衡器免得脸摔到地上。

And the major subject in designing an intense-beam proton linac is to control beam losses to a very low level.

我国科学家早已注意到这一新动向，结合我国核电发展需求的现实，提出了洁净核能系统开发研究的新课题。

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