孔径

The signals of different diametric defects are detected clearly.

实验检测到的钢管不同孔径缺陷信号与数值模拟结果相吻合。

Due to the numerical aperture of DVD pickup is large, and the characteristic size is small, the error of scalar diffraction theory is very large. The in-depth research work on vector diffraction of optical disc was carried out. The optical disk model was analyzed use the rigorous coupled wave theory, and some significative conclusion was obtained. These conclusions can use for guidance of scheme designing of optical pickup.

针对DVD读取头光学系统数值孔径大，光盘特征尺寸小，标量衍射理论误差大等缺点，采用矢量衍射理论对光盘的衍射进行了深入的研究，首次在光学读取头领域中将耦合波理论应用到光盘的衍射分析中，得到了一些有意义的结果，这些结果可以用来指导光学读取头方案的设计。

Measuring diffuse reflection characteristic of He Ne laser irradiation for rats tissues at different aperture of diaphragm in vitro.

本文对大鼠组织在不同光阑孔径下对He-Ne激光的漫反射特性进行了测量。

In this paper, a new method which is based on anisotropic diffusion equation for INSAR phase noise reduction is proposed.

摘要该文提出了一种基于各向异性扩散偏微分方程抑制干涉合成孔径雷达相位噪声的算法。

Finally, a model was proposed to describe the diffusivity of water in micropores as a function of temperature and density.

同时还发现沿孔道方向的自扩散系数分量大约为孔径方向的4~5倍。提出了微孔中水自扩散系数的关联模型。

The experimental research results show: Synthetic aperture technique can improve the resolution of digital holography evidently.

结果表明，合成孔径技术是一种提高数字全息再现像的分辨率的有效方法。

Small aperture array ; wideband distortionless beamforming ; direction of arrival estimation ; multiple sources

小孔径基阵；宽带无失真波束形成；定向；多个声源

However, with the current breakthrough utilizing HAST (Hyper-amorphous silicon TFT) technology, Casio has managed to reduce the dot pitch (from typical 23um to 15.5um) while still able to maintain the perfect light aperture ratio.

然而，目前的突破，利用你技术，卡西欧已经设法减少点距（从典型23um到15.5um ），而仍然能够保持完美的光孔径比。

If the bore-sized disc filters are reduced, the DREE content should decrease obviously, but the shale normalized patterns totally show weak variety, with the degree of Eu-anormaly changing greatly, which suggests that the particle adsorption is important to Eu.

2减小过滤孔径，DREE的含量明显减少，但页岩标准化模式总体上变化不大，其中Eu的异常程度发生了明显变化，说明颗粒物吸附作用对Eu的影响比较大。

Then, by the aid of the self-made piezoelectric vibration table, experiments of vibration drilling were done on duralumin (2A12) and stainless steel (0Cr18Ni9), and the aperture size, surface topography and surface roughness were tested.

在此基础上，利用自制的压电式振动工作台进行了硬铝和不锈钢的轴向振动钻削实验，并对孔径大小、表面形貌和表面粗糙度进行了测量。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了