flat-top

noun

1. 平顶头（发型）
   a hairstyle in which the hair is cut short and flat across the top

1. M~ 2-factor of partially coherent flat-top beams propagating in gain or loss media
   部分相干平顶光束在增益或损耗介质中传输的M~2因子
2. Flat-top sealed can This pot goes on the top shelf.
   带平顶盖的密封罐（润滑油用）这个罐儿该放到架子的顶层。
3. Construction Technology for Ultra-shallow Flat-top Large Section Vertical Wall Subsurface Excavation Under City Pipe-group
   城市管群下超浅埋大断面平顶直墙暗挖施工技术
4. A ceiling constructed with recessed panels. flat-top plastic bifocal
   花格平顶由凹形窗格建成的顶部平顶塑料双焦点透镜
5. Optimal Design of Jib of Flat-top Tower Crane Tower Crane Based on Discrete Variables
   基于离散变量的平头塔式起重机起重臂优化设计
6. The results of flat-top wave beam and cosecant square wave beam, which are gained using this method, are fairly good, testifying this method is effective in beam shaping of conformal arrays.
   运用此方法得到共形圆柱阵列的平顶波束和余割平方波束方向图，效果较好，证明此方法对于共形阵列是有效的。
7. What make the nationalism become reality are the overall conflict among the nations, the obstructed development of the global structure and the rapid development of the information flat-top.
   而民族国家间全面冲突、全球化格局的滞后，以及日渐发达的信息平台，使民族主义成为现实。
8. The results indicate that flat-top beam shaping and single-circle beam shaping at the focal plane can all be realized by using three-zone annular phase pupil filters.
   模拟结果表明，利用三环相位光瞳滤波器，不仅可以在焦面上实现光强的平顶分布，而且还可以得到单环衍射光束。
9. To produce a beam with a flat-top profile, we optimize the amplitude and phase of each unit laser using the least-square method.
   文章使用最小二乘拟合法优化各个单元激光器的振幅和相位，以获得最优化的平顶光束。
10. Flat-top sealed can A hermetic seal is used on this glass bottle.
    这个玻璃瓶用的是一种密封盖。
11. Flat-top glaciers reflect main regional features of mass exchange.
    平顶冰川在很大程度上反映了物质交换的区域特征。
12. In order to find a new method for studying and analyzing the output beams of TEA CO_2 lasers, according to the FGB theory, the energy density distribution of the measured flat-top beam output by a TEA CO_2 laser was expanded in Hermit-Gauss functions.
    为了给研究和分析TEACO2激光器输出光束提供一种新的处理方法，采用FGB理论，对实验测量的一台TEACO2激光器输出的实际平顶型光斑的能量密度分布按厄米-高斯函数进行了展开。
13. The effects of spectral response of AWG device as the configuration parameters of parabolic horn were discussed. We can choose the optimized parameter according to the spectral response. A flat-top AWG with low chromatic dispersion was obtained through analyse and design.
    对抛物线型过渡器的结构参数对AWG的光谱响应的影响作了讨论，并且通过分析和设计，可以得到低色散的平坦光谱响应AWG。
14. To improve the transmission property, a all optical fiber fourier flat-top interleaver is studied.
    为了改善滤波器的滤波特性，本文重点研究了一种傅里叶顶端平坦型的全光纤Interleaver。
15. The machined surface of zirconia toughened mullite obtained by grinding, honing and flat-top honing were studied.
    本文应用表面粗糙度参数和磨损率，研究增韧莫来石材料磨削、珩磨及平顶珩磨表面的耐磨性能。
16. Effect of Flat-Top Acceleration on Longitudinal Phase Space
    平顶波加速对束流纵向相空间的影响
17. The effect of the random growth error on the transmission performance of the double half-wave filter with flat-top response is studied, with the transmission matrix method.
    采用传输矩阵的方法，研究了随机生长误差对双腔型平顶滤波器透射特性的影响。
18. This photodetector was discussed by transfer matrix method. The analysis result of the photodetector showed that the Si-based photodetector relatively high quantum efficiency and perfect flat-top and steep-edge spectral response.
    并用传输矩阵法对探测器性能进行了理论分析，分析结果显示该光探测器拥有相对较高的量子效率和非常良好的平顶陡边光谱响应特性。
19. In addition, different kinds of step shaped structure with flat-top and steep-edge spectral response are discussed and compared. 2.
    除此之外还对采用各种台阶结构实现平顶陡边光谱响应方法的优劣进行了分析和归纳。
20. Therefore, it is necessary to shape the laser beam, transforming Gaussian beam into a flat-top beam.
    因此需要对激光器发出的高斯光束进行空间整形，即将高斯光束整形为平顶光束。
21. Pulse stacking is an excellent method to produce arbitrary shape pulse including flat-top pulse.
    脉冲堆积是产生包括平顶脉冲在内的任意形状脉冲的一种合适方法。
22. A Si-based photodetector was designed to obtain flat-top and steep-edge spectral response.
    设计了一种具有平顶陡边光谱响应的Si基光探测器。
23. At last, we succeed to get 1D, 2D and 3D flat-top energy density of light field.
    最终，我们获得了一维、二维和三维的平顶型光场分布。
24. The dissertation also discusses the implementation of the algorithm of the basic parameters of the beam, elliptic analysis, flat-top analysis, the beam quality parameters and so on and three-dimensional display of beam images.
    本论文还讨论了程序中光束的基本参数、椭圆分析、平顶分析、光束质量参数等算法的实现方法，以及光束图像的三维显示实现。
25. Experimental results show this approach could gain the flat-top beam and it is an effective approach for laser beam shaping.
    实验结果表明，该方法对激光光束的整形效果明显，获得了所要求的均匀光束。
26. A monolithically integrated tunable dual-wavelength photodetector with flat-top response is designed by the introduction of a4-step microstructure into EG-FPC.
    通过在EG-FPC中引入具有4个台阶的阶梯型微腔结构，设计了单片集成可调谐双波长平顶响应光探测器。
27. A circuital control method achieving the flat-top and steep-edge response of photodetectors was studied. To realize the scheme, a structure was designed and simulated.
    研究了电路控制法实现光探测器的平顶陡边光谱响应的原理，设计了实现的结构，并对该结构进行了仿真。
28. A Si-based tunable flat-top photodetector is designed by the introduction of a2-step microstructure into Si-based F-P cavity.
    通过在硅基F-P滤波腔中引入具有2个台阶的阶梯型微结构，设计了硅基可调谐平顶响应光探测器。

adj

1. having a flat or flattened upper surface

   Synonym:    flat-topped