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小孔径
相关语句
  small aperture
    Research on the ultra precision measuring method of diameter of small aperture
    小孔径超精测量方法的研究
短句来源
    Measuring Low Velocity Turbulence Field with Hartmann and the Extend of Small Aperture Beam Technique
    Hartmann测量低速湍流场及小孔径光束技术的拓展
短句来源
    Multiple broad-band source location using multiple subarray with small aperture
    基于多个小孔径基阵的水下目标宽带波达方位估计方法
短句来源
    The small aperture technique bases on the theory of Hartmann wavefront sensor, transforms beam spatial deviation into slope of locale optical wavefront, carries out the real time measurement of optical wavefront aberrations.
    小孔径光束技术也是基于Hartmann波前传感器原理,通过转化光束的空间偏移量为当地光波前的斜率,实现对光波前畸变的实时测量。
短句来源
    A good performance SAW convolver was designed using small aperture transducer and multi tapped waveguide.
    一种采用小孔径换能器、多抽头波导的简洁有效的设计的卷积器获得了较好的性能。
短句来源
  “小孔径”译为未确定词的双语例句
    10. 6μm Ge-Ag-Ni Hollow Waveguides with Small Cross-sectional Radii
    用于10.6 μm CO_2激光的小孔径Ge-Ag-Ni空心波导
短句来源
    A transverse output optical system and gas dynamic window of small diameter orifices for a 6 kW level CO2 laser is described.
    本文叙述了一种用于6kW单模CO_2激光器的横向耦合输出光路和小孔径喷管气体动力窗口。
短句来源
    During X ray imaging by coded aperture, the image, which is produced on the receiving surface when the ray passing the small apertures arranged in some special way, is often regarded as the result of projection.
    在X射线的编码孔径成像中,X射线穿过按一定规律分布的小孔径而在接收面上所形成的图像,通常认为是以投影方式形成的。
短句来源
    Based on the measured altitude distributional adta of the turbulence structure constant(),this article analyses the effect of turbulent outer scale(L_0)on atmospheric transverse coherenee length(r_0)and isplanatic angle (θ_0).
    根据实测的湍流结构常数的高度分布资料,分析了大孔径和小孔径两种情况下湍流外尺度L_0对大气相干长度r_0和等晕角θ_0的影响。
短句来源
    This paper presents an approach for the estimation of directions-of-arrival (DOA) of multiple broad-band sources using multiple small-aperture subarrays.
    本文将多小孔径基阵应用于声呐浮标阵对可疑海区进行快速搜索的研究中,提出了一种基于多个小孔径子阵的宽带目标方位估计方法。
短句来源
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  small aperture
The technique can be used when conventional methods are inapplicable because of the small aperture dimensions relative to the wavelength, the presence of fluctuations, or nonstationary conditions.
      
The response of an infinitely small aperture is calculated, and the explicit solution is found for the case of a circular aperture.
      
However, a relatively high level of speckle noise in the difference image is caused by the spatial filtering with a small aperture (laser beam) in the minimum of the superposition field in the Fourier hologram plane.
      
Platelet function was assessed using the PFA-100 system that allows for quantitative assessment of platelet function, reporting platelet aggregatability as the time required to close a small aperture in a biologically active membrane.
      
The work presented in this article investigates the behaviour of the current in the load impedances of a lossless coaxial cable, with homogeneous metalic shielding, presenting an electrically small aperture defect in the shield.
      
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In this paper, a theory is presented for the linear acoustic resistance of an orifice in an infinite thin plate. For high frequency and/or great orifice, an approximating formula is derived, while the limiting value is obtained in opposite case. Theoretical calculations are in consistency with experimental data. Finally, an approximating formula which is applicable for the whole frequency range is given.

本文提出至今尚未圆满解决的无限薄平板中一个圆孔的线性声阻的理论分析方法,得到了线性声阻率的高频(或大孔径)近似式及低频(或小孔径)极限值;理论计算和实测值符合良好;最后给出了在全频率范围适用的声阻率近似公式。

This paper deals with the properties of narrow He-Ne discharge plasma in which the Avail condition is considered. Taking into consideration the wall sheath at various currents, the electron temperature, spatial density distribution and voltage-current characteristics are calculated. The calculation agrees with the experimental results.

本文计算小孔径He-Ne管等离子体鞘层及电子温度,并对其电势及厚度的公式进行了讨论;计算的正柱区伏-安特性与实验符合.

A transverse output optical system and gas dynamic window of small diameter orifices for a 6 kW level CO2 laser is described. It has the advantages of less leakage of lasing gas and higher efficiency to prevent air molecules from diffusing into the laser cavity, and much lower consumption of lasing gas. It can also improve the laser beam modes.

本文叙述了一种用于6kW单模CO_2激光器的横向耦合输出光路和小孔径喷管气体动力窗口。它具有工作气体漏泄量小,能有效阻止空气分子向激光器工作腔内扩散,大大降低工作气体消耗等优点,且能显著改善输出光束模式。

 
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