孔径

结果表明，SBA-15介孔材料表面积大，孔径大，是理想的催化剂载体。

The results show that the SBA-15 mesoporous material with large surface area and bore diameter is an ideal catalyst carrier .

大孔径聚四氟乙烯筛板的力学性能研究

Studies on mechanical properties of polytetrafluoroethylene ( ptfe ) big bore diameter sifter

用闪光照相，要把光圈孔径定为5.6。

For flash photography , set the aperture at f.5.6 .

这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。

The camera has a 32mm lens with a maximum aperture of f / 4.5 and a fixed shutter speed of 1 / 100sec .

无人机搭载光电探测吊舱、合成孔径雷达、航拍CCD相机、应急通信保障吊舱、应急投送舱等设备。

The large UAV is equipped with an electro-optical / infrared pod , a synthetic , an aerial camera , an emergency communication pod and an emergency transmit drop pod .

比较了在不同气压和空心阴极孔径下虚阳极的形成时间和扩展速度

The virtual anode formation time and propagation velocity at different pressure with different apertures are investigated .

虚假场景干扰是对合成孔径雷达（SAR）系统进行有效干扰的重要技术。

Deceptive scene jamming is an initial jamming technique for SAR system .

随着电压的升高，陶瓷膜表面微孔的孔径变大，陶瓷膜内的Ca，P元素含量亦随之升高。

The content of Ca and P element in the coating also increased with the increasing of voltage .

合成孔径雷达（SAR）图像的匹配处理是SAR图像后处理及应用的重要环节。

SAR image matching is important to SAR applications .

系统地总结了围内外合成孔径雷达（SAR）卫星的发展现状及趋势，提出了大视角双侧视SAR卫星的新概念。

The development of Synthetic Aperture Radar ( SAR ) satellite is summarized .

斜视模式SAR合成孔径长度分析

Analysis of Synthetic Aperture Length of Squint SAR

CCD扫描法拉丝模孔径测量仪

An Aperture Measuring Apparatus of a Wire Drawing Die Based on CCD Scanning Method

介绍了一种利用目标模拟器产生合成孔径雷达（SAR）场景目标回波的方法。

This paper introduces a method of SAR surface target echo generation applying target simulator .

高速DSP板的开发及其在合成孔径雷达实时信号处理中的应用研究

The Development of High-Speed DSP Board and its Application in Real-time Signal Processing of Synthetic Aperture Radar System

一种快速的海面特征SAR成像仿真技术合成孔径雷达图像的近岸海面风场反演

Fast Simulation of Ocean Features Imaging by SAR Coastal Ocean Surface Wind Retrieval from SAR Imagery

分析了合成孔径雷达（SAR）图像中相干斑（Speckle）的统计特性。

This paper analyzes the statistics of speckle .

电荷守恒与CCD孔径测光

Charge Conservation and CCD Aperture Photometry

所拉制的光纤、数值孔径NA高达0.30。

The NA of the fibers to be drawn can be up to 0 30 .

阵列中微透镜的孔径为50μm，透镜F数为f/2.5，微透镜阵列的中心距为50μm。

The lens f number and array pitch are f / 2.5 and 50 μ m , respectively .

文章主要提出了一种新的基于小波变换对高分辨率合成孔径雷达（SAR）图像相干斑噪声抑制的算法。

This paper mainly deal with a new speckle reduction algorithm in high resolution SAR images based on wavelet transform .

多强点目标场景合成孔径声纳SAS自聚焦算法研究

SAS Autofocus Algorithm Based on Strong Targets

依据光的标量衍射理论，考虑X射线的衍射效应，导出了环形编码孔径的点扩展函数。

Considering the X-ray diffraction effect the point spread function ( PSF ) of the ring coded aperture is derived from the scalar diffraction theory .

多孔径TEM的解释理论和方法技术的应用，对提高TEM资料的解释精度及分辩能力无疑具有重要的意义。

It is important significance to apply this theory and technology to improve precise of TEM data and resolving power .

高时效性和大数据量是合成孔径雷达（SAR）实时成像处理系统的两个主要问题。

The data volume and the high real-time are the two vital problems of Synthetic Aperture Radar ( SAR ) real-time imaging system .

由合成孔径原理可知，条带SAR的方位分辨率随波束宽度的变宽而提高。

According to the principle of the synthetic aperture , the azimuth spatial resolution of the strip SAR is improved dramatically with wide beam .

分析了合成孔径雷达的结构和成像原理，重点分析了干扰功率以及干扰条件下量化和限幅对SAR成像的影响。

Discusses SAR architecture and imaging theories , places emphasis on analyzing jamming power , and then discusses the effect of quantizer and limitr in jamming circumstances .

通过炭膜的孔径分布及SEM结果分析，研究探讨了原料煤的颗粒度对煤基炭膜孔结构性能的影响。

; The effect of coal particle sizes on pore structure of coal-based carbon membrane was studied by measuring the pore size distribution and SEM of carbon membrane .

本文以MCM-41和SBA-15两种具有代表性的不同孔径的介孔材料为载体，采用物理吸附法固定化漆酶。

The method for laccase immobilization on mesoporous material by physical absorption has been studied .

阐述了光学综合孔径（OSA）望远镜成像原理以及综合孔径望远镜的几种实现形式；

The imaging theory and several realization ways of optical synthetic aperture telescope are presented .

研究了纳米载体Al2O3的合成条件对孔径分布的影响，并测定了载体孔径。

Effect of the conditions for synthesizing nano-carrier Al_2O_3 on the apertures distribution of carrier was investigated , and the carrier apertures were measured .