查询词典 beams

Propagation of cosh-Gaussian beams through an apertured ABCD optical system .

双曲余弦高斯光束通过有光阑限制的ABCD光学系统的传输。

The propagation property of apertured laser beams (propagation and control of actual high-power lasers) is a complicated and challenging subject in the field of high-power-laser technology and a frontier subject many researchers devoting to.

受光阑限制光束传输特性(实际强激光的传输与控制)是强激光技术研究领域中面临的具有相当的复杂性和挑战性的课题，也是国际同行们正在努力研究的前沿课题。

By means of the Fourier series expansion, an approximate analytical propagation equation of flattened Gaussian beams passing through an apertured paraxial ABCD optical system is derived, and illustrated with numerical examples, when the transmissivity of the aperture is T = cos.

用傅立叶级数展开法研究了平顶高斯光束通过有光阑限制的近轴ABCD光学系统的传输特性，导出了光阑透射率为T=cos时的近似解析传输公式，硬边光阑的情况可作为Ω=0的特例得到。

By means of the Fourier series expansion,an app roximate analytical propagation equation of flattened Gaussian beams passi ng through an apertured paraxial ABCD optical system is derived,and illustr ated with numerical examples,when the transmissivity of the aperture is T=cos.

用傅里叶级数展开法研究了平顶高斯光束通过有光阑限制的近轴ABCD光学系统的传输特性，导出了光阑透射率为T =cos时的近似解析传输公式，硬边光阑的情况可作为Ω=0的特例得到。

Related problems about structural fire resistance are presented including fire resistance of reinforced concrete structure,hypo-stress initiated by fire,catenary action of beams,fire resistance design method of frame structure,crack mechanism of concrete and explosinon-proof measures,and this accelerates the development of architectural apyrous design.

提出了结构抗火相关问题的思考，包括加固混凝土结构抗火性能、火灾引起的次应力、梁的悬链线效应、框架房屋抗火设计方法、混凝土爆裂机理及防爆措施等，从而促进建筑抗火设计的发展。

The tiny mustachioed orphan of the storm beams innocently over the shoulder of McKay's own dearest.... Old stuff about an endearing note which Chaplin receives by mistake.... Out to make his pile so that he can wed the Klondike Kitty Kelly .... More prospectors*.... The big strike; the search for the girl; the scene on board the ocean liner in which the stunted erstwhile prospector, now in purple and fine sable, lounges on the first cabin, his heart aswoon for a vanished barmaid ...

这个在风雪中孤苦无依的流浪汉，挑挑自己的小胡子，越过McKay的肩膀无辜得朝人家的小宝贝儿笑笑……卓别林靠着误会被美人接受，这情节又不足为奇……他用大把大把的钞票融化了Klondike的Kitty Kelly 的心……更多的采矿汉、混乱的打斗，寻找女孩；画面又转到了远洋客轮的甲板上，那个过去矮小的采矿汉现在已锦衣玉食，坐在头等舱，他为一个消失了的酒吧女郎而魂不守舍。

A modified Vlasov equation which describes the evolution of the spatial and momentum distribution of axisymmetrical electron beams is developed based on the statistical dynamics theory.

利用统计动力学方法建立了描述旋转对称电子束的电子空间及动量分布演化的变态伏拉索夫方程，并在一阶旁轴近似下研究出一种半解析计算方法。

The asymmetric distributions of the surface optical second harmonic generation through azimuthally angular scans for thin silver films deposited on Si(111) wafers have been detected with different polarizations of output beams.

实验发现成长於Si(111)基板的银薄膜，以入射基频光、反射二次谐波的不同偏振组合观察到有不对称的方位角二次谐波强度分布之情形。

. Then, the molasses laser beams are switched off, allowing the atoms to move ballistically away from the region to which they had originally been viscously confined Fig.

13（1）。然后，糖蜜激光束被关闭，让原子移动弹道远离该地区，他们原本是粘性局限于图。

Compared with the ordinary plate beamless roof, the cast-in-place reinforced concrete spatial core beamless roof has two prominent diversities, one is buries the hollow cylinder in the floor to form the hollow floor in advance, the other is equipped with wide-flat beams between the frame.

和普通平板无梁楼盖相比，现浇钢筋混凝土空心板无梁楼盖有两个突出的不同点，一是在楼板内预埋空心圆筒形成空心楼板，二是在框架之间设有暗扁梁。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。