方石英

The results show that the dielectric constant and thermal expansion coefficient increased,the dielectric loss and bending strength desreased with the increasing of anorthite content.

钙长石含量大于50wt%的复合材料中α-石英和方石英的析出增加了材料的热膨胀系数，但对材料的介电性能影响不大。

In this paper, the relationship between volume of cell and temperature for quartz and cristobalite was analyzed.

建立了石英、方石英晶体的介电常数和温度之间的规律，并且发现在从α-β转变过程中，介电常数相关参数都显著变小。

The microstructure of crystallized cristobalite,tridymite andmelanophlogite have been studied and the effect of crystallization on sintering of compositealso has been discussed.

对所析出的方石英、鳞石英和硫方石英的显微结构进行了讨论，同时亦讨论了石英玻璃的析晶对复合材料烧结的影响。

The reflective index of cristobalite is reduced from 1.55 of quartz to 1.48, near to the reflective indexes of PE, PP and some resins.

方石英的折射率从石英的1.55下降到1.48，更接近PE、PP及一些树脂的折射率。

The formation of α-quartz and cristobalite in the composites containing above 50% ceramic content during the sintering process has bad effect on thermal expansion behaviour, but has little effect on the values of dielectric properties of the composites.

锶长石含量大于50%的复合材料中α石英和方石英的析出增加了材料的热膨胀系数，但对材料的介电性能影响不大。

The Company to use the peace rich county kaolin, feldspar, quartz and zeolite, such as non-metallic mineral resources, according to market demand and local policy environment, conditions, introduction of alien technology, including foreign technology, research and development of the market needs of high-purity kaolin, feldspar, quartz and zeolite, cristobalite and other mineral materials.

本公司利用和平县丰富的高岭土、长石、石英和沸石等非金属矿物资源优势，根据市场需求和当地政策环境、条件，引进外来技术包括国外的技术，研究开发出市场需要的高纯高岭土、长石、石英和沸石、方石英等矿物材料。

The irregular stones with white color in glass B are cristobalite and tridymnite (SiO2),which are the crystalline of molten glass itself.

玻璃B中的结石主要为方石英和磷石英(SiO2)晶体，白色，形状不规则，晶粒小，为玻璃熔体本身的析晶。

In the present paper,current research results on the crystallization behavior of cristobalite in silica with different morphologiesand different silica matrix composites and different opinions on the mechanism of the crystallization behavior were reviewed.

方石英由高温冷却时，在大约267oC附近会发生尽相到a一相的二级相变。在这个过程中，方石英热膨胀系数会突然下降，同时产生约2.8%的体积变化效应队2}。

A white or colorless vitreous insoluble solid; various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechartelierite.

一种白色或无色的玻璃质不溶固体，以各种形式广泛存在于地壳中，如石英、方石英、鳞石英等。

On the coke face,the metacristobalite and Quartz transformed into tridymite completely.The C3P,pseudowollastonite and glassy were formed by absorbtion of MgO,Al2O3,P2O5,and CaO contained in coke.

炭化面亚稳方石英和残存石英几乎全部鳞石英化，吸收焦炭中的MgO、Al2O3、P2O5和CaO，生成磷酸三钙（C3P）、假硅灰石和玻璃相。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。