查询词典 metallic

Using empirical electron theory of solids and molecules, the valent electron structures of several transition metallic carbides have been evaluated.

运用固体与分子经验电子理论计算了几种过渡族金属碳化物的价电子结构，发现碳化物的主要价电子结构参数主键键能与碳化物的熔点、硬度及生成焓之间存在着很好的相关

A soft silver-white ductile metallic element; the most electropositive and alkaline metal .

一种质地柔软的银白色韧性金属元素，是最具正电性与碱性的金属。

May be an electrovalent bond , covalent bond and metallic bond mark like chemistry key.

化学键一般可分为离子键、共价键和金属键。

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。

Malfunction of the metallic stent can be caused by encrustation of crystals, bacterial sludge, bile salts, and tumor compression or tumor ingrowth.

金属支架的功能障碍可以由胆管内的结晶凝块，细菌性污泥，胆盐，及肿瘤压迫或肿瘤直接侵入支架。

Because the entire body is a valid target area , epee fencers do not have to wear a metallic lamé.

在重剑比赛中，因为人的整个身体是一个有效的目标区域，重剑参赛者不一定要穿着薄金属片服饰。

In order to solve the shielding performance of microminiature metallic cabinet s,the antenna should be have with minimized size,broad band and high eradiation ability.

最后对3种不同的机箱状态在半电波暗室中进行了屏蔽效能测试，试验获得的数据为今后的机箱屏蔽设计提供了依据。

The bit error rate performance for ultra-wide band indoor communication with impact of metallic furniture is investigated.

在这篇论文里，我们将探讨室内的金属家俱在超宽频(Ultra-Wide Band，UWB)通讯上对位元错误率的影响。

Contemporary vanities are minimal, linear, often metallic and futuristic, having the perfect blend of strength and exquisiteness.

当代虚荣是最小，线性的，经常金属和未来派，有力量和优美的完善的混合。

For one side of its exterior wall transparent glass is used and for the other three extensile metallic plates are used to form a sealed-in curtain wall.

比利时馆的主题为"运动和互动"，展馆的一面外墙采用透明的玻璃材料，另三面采用延展的金属板形成封闭幕墙。

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。