石英的

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。

Silica is an important structural and functional material, which is widely applied in the fields of aero craft, semiconductor, electronic telecommunication, and optical devices. However, the crystallization of cristobalite at elevated temperature has restricted its further application.

石英是一种重要的结构和功能材料，在航天飞行器、半导体、电子通讯和光学器件等领域得到重要应用，但是高温下方石英的析晶限制了它的进一步应用。

This research was important to understand the symmetry property on Dauphine and Brazil twinning of α-quartz and provided a useful method for the identification of the two kinds of twinning.

这一研究对认清α-石英道芬双晶和巴西双晶腐蚀像的对称关系，鉴定α-石英的双晶类型具有理论与实际意义。

According to the Grt-Omp-Phe mineral geothermobarometry, the T-p conditions for the formation of the eclogite are estimated to be 730℃ and 2.7 GPa, close to the phase boundary between coesite and quartz.

Grt-Omp-Phe矿物温压计估算出榴辉岩的形成温压条件为T=730℃。p=2.7Gpa，接近于柯石英和石英的转变线。

The study of the mineralogy indicates:(1)Few impurity and poor sulfur in thestibnite of Shalagang antimony.(2)From the stibnite's cell parameter, it finds that thecell parameter of Shalagang antimony's stibnite approachs the standard value. And iteduces the forming temperature of the stibnite is between 150℃～200℃.(3)Thequartz in different period have different thermoluminescence curve, and thethermoluminescence curves of the quartz in rich ore havethe characters of gently curve, unconspicuous peak and the luminous intensity has therelationship of positive correlation with the temperature.

矿物学研究发现：(1)沙拉岗锑矿床辉锑矿以所含杂质少，贫硫为主要特征；(2)利用晶胞参数测定得出，沙拉岗锑矿床辉锑矿晶胞参数接近于标准值，推算形成温度在150℃～200℃之间；(3)不同期次石英具有明显不同的热释光曲线，其中主成矿期石英的热释光曲线以发光曲线平缓，峰位不明显，发光强度随温度升高而增强为特征。

Traditionally defined as a fibrous cryptocrystalline variety of Quartz, more recently, it has been shown that much Chalcedony is a mixture of Quartz and Moganite, another Silica mineral.

玉髓的传统定义是纤维状隐晶质石英变种，最近，人们发现大部分玉髓都是石英和Moganite(另一种SiO2，石英的同质异形体)的混合物。

The quartz in this region shows a array of deformations from High-temperature -High pressure condition to crust environments: coesite → the high-temperature quartz → sheared quartz vein → feldspathic shear zone (the quartz from two-mica schist)→ the ordinary quartz in eclogites.

7本区石英的变形构成了一个从高温高压到中上地壳的连续变形序列：柯石英→榴辉岩中高温石英→剪切石英脉→长英质剪切带(超高压二云母片岩中石英)→榴辉岩中普通静态重结晶石英。

Basic theory anti experimental method of roamed acid reaction kinetics are presented in this paper.

介绍了泡沫酸与石英反应动力学的基本原理及试验方法，进行了泡沫酸与石英的反应动力学试验。

The variety of quartz include crystal, iris or color quartz, titanic spot or crispite quartz, amethys, citrine, smoky quartz, furong stone, dongling stone, dumortrierite quartz, milky quartz, siderite or sapphire quartz, tiger's eye, hawk's eye, quartz cat's eye, starlight quartz.

石英的种类包括（水晶、晕彩或彩红石英、金红石斑点或网金红石石英、紫晶、黄晶、烟石英或烟晶、芙蓉石、东陵石、蓝线石石英、乳石英、蓝石英或蓝宝石石英、虎眼石、鹰眼或猎鹰眼、石英猫眼、带星的或星光石英）。

In order to resolve the problem met in the pretreatment of traditional methods for Optical stimulated luminescence dating sample which can not obtain enough purity and quantity of quartz, a new quartz separation process in obtained, with contrast experiments, combined with the welldeveloped quartz purification techniques in glass production, finally a new quartz separation process is obtained.

为了解决光释光前处理中遇到的传统方法无法获得满足纯度石英的问题，通过大量对比实验，结合玻璃工艺中石英分离研究成果，最后获得了新的石英提纯流程，与传统方法相比，新方法通过化学分离避免了密度变化对石英长石分离的影响，从而解决了斜长石和岩屑在传统的重液分离中无法剔除的问题，新方法能够获得满足纯度要求和量要求的石英，同时，新方法比传统方法实验室工作效率更高。

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。