查询词典 cryolite glass

Glass ceramics with α cordierite(2MgO·2Al 2O 3·5SiO 2) as main crystal phase, having excellent dielectric property, are perfect materials for microwave parts of a medium apparatus However, the thermal expansion coefficient of the material is not high enough for some special applications Now, a novel glass ceramics with suitable thermal expansion coefficient (47 7×10 -7 / C) and excellent dielectric property (ε=5 1,tgδ0 -3 ) was developed Crystallization process and the th...

本文以堇青石微晶玻璃为研究对象，首次研制得到了一种低介（ε＝ 51）、低损耗（tgδ＜10－ 3）、热膨胀系数（46 ～48 ×10－ 7' C）能与其它器件相匹配的新型微晶玻璃介质材料通过 X射线衍射分析，扫描电镜观察等测试手段，研究了该材料的晶化过程和热膨胀系数的变化规律发现样品的热膨胀系数随温度的变化行为是与样品中析出的晶相种类及析出量随温度的变化规律相对应的

LOW-E energy conservation processed glasses and so on midheaven glass, solar energy glass become the new market demand luminescent spot.

LOW-E中空玻璃、太阳能玻璃等节能加工玻璃成为新的市场需求亮点。

Delphi Glass is proud to be the first to introduce fully-compatible 90 COE Millefiori to the glass industry.

德尔福玻璃很自豪能够成为第一家推出完全兼容的90个卓越Millefiori 的玻璃工业。

Among the artifacts, were ceramic pottery, glass flasks, and a soup-plate-sized glass bowl of millefiori design.

在文物，有陶瓷陶器，玻璃烧瓶，以及汤板尺寸玻璃一碗millefiori设计。

By adding minor amount of cheap element Fe into metallic glass based on Zr65Cu17.5Al7.5Ni10 composite, bulk metallic glass in diameter of 3 mm was successfully synthesized by copper mold suction casting method at different voltages.

对以Zr65Cu17.5Al7.5Ni10为基体的非晶合金中添加微量廉价的Fe元素，采用铜模吸铸法在不同电压下制备出直径3 mm大块非晶合金。

Monazite glass-ceramics consist of both monazite and metaphoshate glass phases.

独居石微晶玻璃由偏磷酸盐玻璃和独居石两相组成。

A bright , silvery rare earth metal element , found in monazite and bastnaesite and used for coloring glass and for doping some glass lasers .

钕：一种亮银色的稀土金属元素，见于单独在石和氟碳锑矿中存在，用于给玻璃染色和给一些玻光器上色。

We prepared about 800 g glass powder totally, and it provided raw material guarantee for preparation of glass/mullite composite material.

共熔制了约800 g玻璃料，为玻璃/莫来石复合材料的制备提供了原料保障。

Working characteristic of Fe-based metal glass Fe36Co36B20Si4Nb4 core, the relationship of frequency, field current and induced voltage, the relationship of magnetic permeability and input frequency were studied. Effective magnetic permeability of Fe-based metal glass Fe36Co36B20Si4Nb4 as mutual iron core was measured using mutual induction method.

研究了Fe36Co36B20Si4Nb4铁基环状金属玻璃作为互感器铁芯材料的工作特性，即频率、励磁电流与感应电压之间的关系；磁导率与输入频率之间的关系，并采用互感方法测量了铁基金属玻璃Fe36Co36B20Si4Nb4作为互感器铁芯的有效磁导率。

This glass is sometimes known as an old-fashion glass.

这种酒杯有时被称为老式酒杯。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。