光源

Due to the difficulty of direct measurement of collision force between small particles, an indirect approach to the measurement by applying PTV technology is developed. The visualized fluidize bed based on microphotography and sheet light source is set up to extend the above approach to practical usage.

针对微细颗粒间微小碰撞力无法直接测量的困难，本文发展出一种基于PTV可视化技术的碰撞力间接测量新方法，同时检验了以上理论成果，并进一步开发了显微摄像和普通光片光源以适用于实际流化床内的碰撞规律研究。

A miniaturized fluorometer was constructed and evaluated using light emitting diode as excitation source.

探讨了用半导体发光二极管为诱导光源，研制微型荧光检测器的可行性。

For example, with theexception of a foldout couch/bed, Omar's helmet and the characters, everything in the interior scenes in the boy's and grandpa's bedrooms (the same room was used for both scenes) was created using set extensions with images that were treated to match the light source and tone and then composited in After Effects.

例如，像插页里的可变动的沙发床一-，奥马尔的头盔和他的特征，一切都-室内场景中的小男孩和他爷爷的卧室-（许多相似的室内场景可以反复使用-他设定了很多延伸的图像，调和光源-调而合成的图像。

For example, with the exception of a foldout couch/bed, Omar's helmet and the characters, everything in the interior scenes in the boy's and grandpa's bedrooms (the same room was used for both scenes) was created using set extensions with images that were treated to match the light source and tone and then composited in After Effects.

比如，除了一张折叠椅/床以外，奥马-的头盔和人物，还有奥马尔和爷爷的-卧室（在两个人的不同场景中使用的-同一个房间）中的一些室内场景，都-通过使用背景拉伸对图象进行处理而创造出来-，让图像与光源和电影格调相匹配，-然后在After Effects里面进行合成。

These include the design of whole system, illumination, software and the selecting method of 1394 camera and frame grabber.

包括系统的整体结构设计、光源设计、系统软件的设计和1394摄像头和图像采集卡的选取。

The frame grabber, which is capable of embedded processing, camera control and light source synchronization, will make the image acquisition in many areas such as machine vision systems, image velocimetry become more convenient.

具有嵌入式处理功能，光源同步和相机控制的采集卡将使机器视觉系统，图像测速等诸多领域的图像采集应用变得更为便捷。

The key techniques relating to machine vision are also explained in detail, for example, illuminating resource, optical lens,camera, image frame grabber,image processing card,integrated vision unit and so on.

一个典型的工业机器视觉应用系统包括光源、光学系统、图像捕捉系统、图像数字化模块、数字图像处理模块、智能判断决策模块和机械执行模块，如图1所示[1]。

fraunhofer diffraction ; Babinet theory ; laser ; optimize to feature point of optical strip

为了获得高质量的 Fraunhofer衍射花样，宜使用单模激光光源。选择一级适宜的

While retrieving the column density of trace gases with the scattered sunlight as light source,it will be affected strongly by solar Fraunhofer lines,which is also called Ring effect.

被动DOAS中利用太阳散射光作为光源解析大气污染气体柱浓度时，会受到太阳弗朗和费光谱的"填充线"即Ring效应的强烈影响，尤其是对浓度很低的痕量气体，致使不易获取其浓度、影响其测量精度。

Free electron laser is a novel coherent light source. It has a wide tunable ability, a high output power, and a high quality light beam.

自由电子激光是一种新型相干光源，它的激光频率在很宽的范围连续可调谐，输出功率高，具有良好的光束质量。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。