平顶

It is shown that in the small distance region of the bar-LD the intensity distribution of the bar-LD is constructed by separate beam spots emitted from each emitter. As the distance of the observation point from the bar-LD increases, the beam spots of the emitters begin to overlap, and even to form a flattop distribution in a large distance region.

结果表明，在距发光面较近处，各emitter辐射的光斑呈分离状；随着距离增加，各光斑开始交叠，甚至出现平顶；当距离足够远，bar型半导体激光器的远场光斑与单个emitter的辐射光斑几乎没有差异。

Newer models have a "flattop" upper receiver with a Picatinny mounting rail, to which the user can attach either a conventional sighting system or numerous optical devices such as night vision scopes.

新的型号（M16A4）具有一个"平顶式"的机匣，以及皮卡汀尼导轨。用户可以在导轨上安装传统的携带提把，瞄准系统，或者各种光学设备，例如夜视镜。

Introduced in '55 as an affordable alternative to the Les Paul's carved-top luxury, the Gibson Les Paul Junior Electric Guitar - a one-pickup, flattop cruisin' machine - caught on quickly and climbed right into guitar legend.

简介：介绍在'55作为对Les保罗的雕刻上面豪华的一个付得起的选择，-一提取，平顶cruisin'机器-迅速风行和爬的Gibson Les保罗小辈电吉他入吉他传奇。

However, we recently found an exception in the corrugated segment, where a more traditional flat-topped dot with a broad base helped to minimize the appearance of fluting.

然而，我们最近发现了一个市场的波纹，在更传统的平顶例外，广泛的基础点有助于减少开槽外观。

For some time past I had been ascending a low, broad, flattopped hill, and o n forcing my way through the undergrowth into the open I found myself on the lev el plateau, an unenclosed spot overgrown with heather and scattered furze bushes, with clumps of fir and birch trees.

有很长的一段时间，我总是在攀登一座低矮宽阔的平顶小山。

By using Zernike polynomials to describe the wavefront distortion of beams, the propagation properties of the flattened Gaussian beams, super Gaussian beams, Gaussian beams and plane waves passing through an aberrated lens or an aberrated annular lens are studied based on the generalized Huygens-Fresnel diffraction integral.

以广义惠更斯—菲涅尔衍射理论为基础，采用Zernike多项式描述像差光束畸变波前相位，研究了平顶高斯光束、超高斯光束、高斯光束以及平面波通过像差透镜和环状像差透镜的传输。

The main products are: aluminum net, steel net, stainless steel wire mesh, black wire cloth, galvanized steel wire, iron aluminum net Luo, mining screen mesh, paper net, gas-liquid to worry too much about networks, conveyor belt net, hexagonal wire mesh, welded wire mesh , Chain Link Fence, audio network, nylon net, ethylene network, network brass, copper network, pre-curved flat screen flat-topped, plastic-coating Garden Wai block and sample processing a variety of special-shaped network is widely used in petroleum, chemical , rubber, automotive, medical, aviation, aerospace and other industries to worry too much about, screening, shielding and so on.

主要产品有：铝板网、钢板网、不锈钢网、黑丝布、镀锌钢丝网、铁硌铝网、矿筛网、造纸网、气液过虑网、输送带网、六角网、电焊网、勾花网、音响网、锦纶网、乙烯网、黄铜网、紫铜网、平顶预弯扁丝网、涂塑花园围拦网及来样加工各种异形网等，广泛应用于石油、化工、橡胶、汽车、医药、航空、航天等行业过虑、筛分、屏蔽等。

On the basis of the theory model of the excimer's partly coherent flat-top Gaussian beam, the diffractive characteristic of micro-lens array homogenizer is theoretically analyzed.

根据准分子激光的部分相干平顶高斯光束理论模型，对微透镜阵列器均束的衍射特性进行了理论分析。

In order to solve the problem,a novel algorithm for pattern synthesis is presented by minimizing the norm of the weight vector under constraints of the mainlode-sidelobe-ratio,mainlobe width,flat mainlobe or interference nulling.

该算法以空域匹配权模值最小为目标函数，以主副比、3 dB宽度、主瓣平顶或干扰陷零等为约束条件，优化出最优权，在保证方向图形状的同时兼顾了阵列效率。

Here are some cake basics, from how to bake flat-topped cakes and the neatest way to fill a pastry bag to the quickest, easiest way to frost a cake.

这里有一些基本的蛋糕，从如何烘烤平顶月饼和neatest方式，以填补糕饼袋，以最快的，最简便的方式，霜饼。

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。