查询词典 sheet

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

Stainless steel sheet with polished surface processed with fiber emery wheel.

用纤维砂轮加工的不锈钢板材的表面。

The focus of this paper is to develop a thin, flexible and light emissive sheet.

本论文的的核心技术就是在开发一轻、薄并可挠曲的发光板。

While enameled pressed steel sheet or stone is used in the direction facing the platform.

虽然漆包线压钢板或石头是用来方向面临的平台。

The chemical composition and the production process of the high strength hot rolled sheet steel for electrostatic enameling are introduced briefly.

简述了工业生产高强度热轧薄钢板的成分和生产工艺，其室温组织由极细的铁素体晶粒和极少量的珠光体组成。

The chemical composition and the production process of the high strength hot rolled sheet steel for electrostatic enameling are introduced briefly. The microstructure of the steel is composed of fine grained ferrite and tiny amount of pearlite.

简述了工业生产高强度热轧薄钢板的成分和生产工艺，其室温组织由极细的铁素体晶粒和极少量的珠光体组成。

Two years hand-grinding practical experiences, have sheet metal fabrication, encloser, driving cabinet working background will be very good

两年表面手工研磨工作经验，有板材加工/机柜/驾驶室制造行业背景的优先

At least three years CNC Turret punching machine,CNC shearing machine,CNC bending machine practical experiences, have sheet metal fabrication, encloser, driving cabinet working background will be very good

至少三年以上数控转塔冲床，数控剪床，折弯床操作经验，有板材加工/机柜/驾驶室制造行业背景的优先

For example, the chinaroot greenbrier division in the endogen in the plant that has all sorts of kinds, have wood this, herbaceous, have erect, of scramble, of inflorescence having sheet, also have compound inflorescence etc.

例如，在单子叶植物的菝葜科中有各种类型的植物，有木本的。草本的，有竖立的。攀缘的，有单花序的。也有复合花序的等等。

It mainly produced and operated "Ding" brand auto enlace machine, paper and plastic packer, manual heat packer, sheet iron packer, hardware tool etc series products.

主要生产经营"鼎"自动捆扎机、纸塑两用打包机、手动热合打包机、铁皮打包机，"雷奇"牌电动工具、手动工具、五金工具等系列产品。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。