玻璃的

The structure of borosilicate glass was analyzed by infrared spectra, the thermal expansion coefficient and expansion sof- tening temperature were measured by dilatometer, the phase separation of glass was investigated by scanning electron microscope and the component of silicon-rich phase was analyzed by X-ray energy dispersive spectroscopy.

通过红外光谱分析了Al2O3取代SiO2后硼硅酸盐玻璃结构的变化，测试了玻璃的热膨胀系数和膨胀软化温度，通过扫描电子显微镜分析硼硅酸盐玻璃的分相，并结合X射线能谱分析了富硅相的组成。

Diopside crystals in fluosilicate glass-ceramics tend to lower thermal expansion coefficient, while richterite crystals in fluosilicate glass-ceramics tend to increase thermal expansion coefficient.The lowest thermal edpansion coefficient of K2O-MgO-SiO2-CaF2 fluosilicate glass-ceramics is 78.4×10-7(20-300℃), while the highest thermal expansion coefficient of this glass-ceramics is 85.6×

透辉石结晶相的含量增加使微晶玻璃的热膨胀系数降低，与此相反碱镁闪石结晶相的含量增加却使微晶玻璃的膨胀系数增加。K2O－MgO－SiO2－CaF2系统氟硅酸盐微晶玻璃的最小热膨胀系数为：78.4×10－7（20～300℃）；最大热膨胀系数为：85.6×10-7（20～300℃）。

A thin, glassy coating of ice.Glassy or transparent in appearance; hyaline.

玻璃样的，透明的看起来象玻璃的或透明的；玻璃般的

The uniform matrix of hyaline cartilage.Glassy or transparent in appearance; hyaline .

玻璃样的，透明的看起来象玻璃的或透明的；玻璃般的

With the RoHS promulgated by European Union and the enhancement of human environmental pro- tection consciousness,leadless low-melting glasses is getting more and more attention.

概述了无铅低熔玻璃的国内外研究现状，对无铅硼酸盐，磷酸盐、钒酸盐玻璃等体系的组成以及物化性能进行了较为全面的介绍，并分析了无铅低熔玻璃今后发展的难点和趋势。

The crystallization form of porous glass-ceramics belong to volume crystallization; the parawollastonite which was the main phase was monocline chain structure ZM type wollastonite, with long needle crystal or short rodlike crytal.

为了研究多孔微晶玻璃的保温性能，根据伟晶岩多孔微晶玻璃的内部组成以及孔隙率情况，作者提出了三种热传导的理想等效物理模型，推导出了数学公式，验证了多孔微晶玻璃的导热系数。

To provide an alkali free glass which is suitable as a glass substrate for LCD and has few defects of bubbles and an undissolved starting material, and a process for producing an alkali free glass which can readily lower the defects in bubbles and an undissolved starting material.

提供适用于LCD用基板玻璃等的气泡和原料未溶解物少的无碱玻璃，以及能够容易地减少气泡及原料未溶解物的无碱玻璃的制造方法。

"A decline set in after the 13th century, when stain ed-glass artists began to seek the realistic effects sought by Renaissance painters, effects to which the technique was less suited and which diverted artists from exploiting the all-important light-refracting quality of glass."

13世纪后开始衰退，当时的彩色玻璃艺术家渴望实现文艺复兴画家所追求的写实主义效果，但彩色玻璃技术无法实现这一效果，于是他们开始挖掘玻璃的反光作用。

The absorption spectrum and fluorescence of Ni2+-doped NASL glass and glass ceramics were measured. It shows that the Ni2+-doped NASL glass ceramics has a broad fluorescence spectrum centering at 1185 nm with full width at half maximum of about 300 nm.

测试了Ni2+掺杂NASL玻璃和微晶玻璃的吸收光谱和荧光光谱，发现Ni2+掺杂NASL微晶玻璃有较宽的荧光光谱，荧光中心位于1185 nm，荧光半峰全宽约为300 nm，荧光寿命和受激发射截面的乘积为4.2×10-24 cm2·s。

The results show that for SiO〓 and GeO〓 glasses, the Rayleigh scatterings arise mainly from the disorders of the densities of atoms, consistent with the assumption of the fictive temperature approximation which is the usual method used in the existing optical fiber theory to calculate Rayleigh scatterings in glasses.

计算结果表明：对SiO〓和GeO〓玻璃，现有光纤理论的瑞利散射处理方法——虚温度近似所作关于玻璃中瑞利散射主要来自玻璃的原子密度无序的假设能很好成立。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。