| 1. | Standard test method for resistivity of electrical conductor materials 导电体材料电阻率的标准测试方法 |
| 2. | Test method for evaluating connectability characteristics of electrical conductor materials 评价导电材料连接特性的试验方法 |
| 3. | Standard test methods for evaluating connectability characteristics of electrical conductor materials 评定电导体材料连接特性的标准试验方法 |
| 4. | High purity gallium metal is the basic ingredient for semiconductor compound material , and it is also highly utilized in the manufacture of super conductor material , alloy , alnico etc 高纯度金属镓是生产化合物半导体材料的基础材料,同时它还可以用于生产超导材料、合金材料、永磁材料等。 |
| 5. | Only photons in a very narrow frequency range can be emitted by any material . led s that emit different colors are made of different semi - conductor materials , and require different energies to light them 以上仅为led并档使用的推荐办法,在实际生产中,用户则可以根据自己产品的特点进行相应的调整或以其它的办法使用。 |
| 6. | The attention of the conference is paid to the trends and developments in micro - beam techniques , total reflection x - ray fluorescence analysis , new x - ray detector developments , film and coat analysis , sample preparation techniques and semi - conductor material analysis , etc 会议期间,关于微束装置及其分析技术、全反射技术与应用、探测器研制、薄层分析、样品制备、半导体材料分析等,受到广泛关注。 |
| 7. | For each recombination of a negative and a positive charge , a quantum of electromagnetic energy is emitted in the form of a photon of light with a frequency characteristic of the semi - conductor material usually a combination of the chemical elements gallium , arsenic and phosphorus Img httpwww . sunlight - led . com img jiantou . gif img我司产品在发货时均是采用自动分光机来分光分色分电压,一般同一包装袋内均为同一个档次之产品。 |
| 8. | The uk is very well - positioned to innovate and exploit this emerging requirement . a wide range of companies and universities are actively researching the key barrier , substrate and flexible transparent conductor materials that will be required to facilitate the markets growth . 英国具备创新和开发该技术的合适条件以满足该突出需求,众多的企业和大学研究机构都在积极研究该技术的主要障碍,感光胶片和移动显示原料,这些研究都将推动市场的发展。 ” |
| 9. | The questions the researcher concerned are which system will be chosen and how to obtain the good lithium ionic conductor materials , which is the basic departure of the paper . the addition of second phase in composite can change the interface structure and the conduction mechanism , improve the matrix conductivity and other function such as the sintering , crisping and so on , so the research of composites are an interesting field of the ionic conductors . the synthesis of lithium ionic conductor is often by solid state reaction , but this method needs high temperature and leads to the volatility of lithium which not only causes the drift of the compounds but gets the no well - distributed materials 研究者所关注的问题是选择新的体系进行研究,以期得到性能更好的锂离子导体材料,这也正是本论文的基本出发点;复合离子导体中第二相的加入改善了基质的界面结构和导电机制,不仅可以提高基质材料的电导率,还可以在一定程度上改善材料的其它性能,如烧结性能、脆性和机械强度等。因此复合材料的研究是离子导体一个有广阔前景的发展方向;合成锂离子导体,特别是成分复杂的体系以传统的固相合成法为主,但这种方法需要较高的温度,容易引起锂的挥发,从而造成产物组成的偏移,而且不易得到显微结构均匀的材料。 |
| 10. | Chapter 1 preparation and properties of several kinds of nanometer oxide semiconductor photocatalyst materials and the photocatalytic activity and superhydrophilicity of titanium dioxide in this paper , the recent progress on preparation and properties of some kinds of nanometer oxide semiconductor photocatalysts was reviewed . the photocatalytic mechanism of nanometer oxide conductor material have been explained 第一章几种纳米氧化物半导体光催化剂的制备和性能及二氧化钛的光催化与超亲水性本文综述了近年来几种纳米氧化物半导体光催化剂在制备和性能方面的研究成果,阐述了纳米氧化物半导体材料的光催化原理。 |